Updated 3 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,762exploited flaws on CISA’s list

34added in the last 30 days

344new WordPress flaws this week

390,080entries in the database

967 results · page 2 of 20

Sep 24, 2026In the Linux kernel, the following vulnerability has been resolved: lockd: fix swapped arguments in nlmsvc_match_ip() When releasing locks by server IP addresCVE-2026-93231 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
In the Linux kernel, the following vulnerability has been resolved: lockd: fix swapped arguments in nlmsvc_match_ip() When releasing locks by server IP address via /proc/fs/nfsd/unlock_ip, nlmsvc_unlock_all_by_ip() calls nlm_traverse_files() with the server sockaddr as the opaque @data argument: nlm_traverse_files(server_addr, nlmsvc_match_ip, NULL); The match callback is later invoked from nlm_traverse_locks() as: match(lockhost, host); where the first argument is the nlm_host that owns the lock, and the second argument is the @data that was originally passed down (here the server sockaddr). This is the convention every other match callback relies on (nlmsvc_mark_host(), nlmsvc_same_host(), nlmsvc_is_client()): arg1 is the real nlm_host, arg2 is the caller-supplied reference value. nlmsvc_match_ip() has had these two arguments reversed ever since the unlock-by-IP feature was introduced in commit 4373ea84c84d ("lockd: unlock lockd locks associated with a given server ip"): return rpc_cmp_addr(nlm_srcaddr(host), datap); Here @host is actually the server sockaddr, so nlm_srcaddr(host) dereferences a struct sockaddr as a struct nlm_host and reads garbage at the offset of
Product
Linux
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record git.kernel.org git.kernel.org
Sep 24, 2026MasterStudy LMS: Does not verify that a user is enrolled in a course before recording lesson completions against itCVE-2026-88847 · WordPress plugins & themes · reported by WPScanMedium 4.3
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not verify that a user is enrolled in a course before recording lesson completions against it, allowing any authenticated user, such as a subscriber, to create course progress records for courses they have no access to.
Product
MasterStudy LMS
Fixed in
3.7.50
What to do
Update MasterStudy LMS to 3.7.50 or newer.
Full record and what to do →NVD record wpscan.com
Sep 24, 2026MasterStudy LMS: Does not check whether user registration is enabled on the site before creating an account through one of its front-end registration flowsCVE-2026-88846 · WordPress plugins & themes · reported by WPScanMedium 5.3
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not check whether user registration is enabled on the site before creating an account through one of its front-end registration flows, allowing unauthenticated users to create accounts, and be logged into them, on sites where registration has been deliberately disabled.
Product
MasterStudy LMS
Fixed in
3.7.50
What to do
Update MasterStudy LMS to 3.7.50 or newer.
Full record and what to do →NVD record wpscan.com
Sep 24, 2026MasterStudy LMS: Does not perform any capability or nonce checks on an administrative maintenance actionCVE-2026-88845 · WordPress plugins & themes · reported by WPScanMedium 4.3
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform any capability or nonce checks on an administrative maintenance action, allowing any authenticated user, such as a subscriber, to trigger it and create published content on the site attributed to their own account.
Product
MasterStudy LMS
Fixed in
3.7.50
What to do
Update MasterStudy LMS to 3.7.50 or newer.
Full record and what to do →NVD record wpscan.com
Sep 24, 2026MasterStudy LMS: Does not validate one of its display-style settings before using it to build a template pathCVE-2026-88843 · WordPress plugins & themes · reported by WPScanHigh 7.2
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not validate one of its display-style settings before using it to build a template path, allowing users with the Contributor role and above to include and execute arbitrary local PHP files on the server. An equivalent path was corrected in an earlier release and this one was not, so the issue persists in versions the earlier advisory reports as fixed.
Product
MasterStudy LMS
Fixed in
3.7.50
What to do
Update MasterStudy LMS to 3.7.50 or newer.
Full record and what to do →NVD record wpscan.com
Sep 24, 2026Masteriyo LMS: Does not restrict access to quiz answer keysCVE-2026-82850 · WordPress plugins & themes · reported by WPScanMedium 4.3
The Masteriyo LMS WordPress plugin before 3.4.2 does not restrict access to quiz answer keys, allowing any authenticated user, such as a student, to retrieve the correct answers for any quiz on the site, including quizzes in courses they are not enrolled in. The redaction that hides them is applied only to a fixed list of question types, so the answers to every other type are returned in full to anyone able to view the questions.
Product
Masteriyo LMS
Fixed in
3.4.2
What to do
Update Masteriyo LMS to 3.4.2 or newer.
Full record and what to do →NVD record wpscan.com
Sep 24, 2026Masteriyo LMS: Does not verify that the user making the request owns the course-progress records being returnedCVE-2026-82849 · WordPress plugins & themes · reported by WPScanMedium 4.3
The Masteriyo LMS WordPress plugin before 3.4.2 does not verify that the user making the request owns the course-progress records being returned, allowing any authenticated user, such as a self-registered subscriber, to read another user's learning activity. The ownership check it applies is skipped whenever the requested account is not named with a non-zero value, in which case the records of every learner on the site are returned at once.
Product
Masteriyo LMS
Fixed in
3.4.2
What to do
Update Masteriyo LMS to 3.4.2 or newer.
Full record and what to do →NVD record wpscan.com
Sep 23, 2026A vulnerability was determined in Forma LMS up to 4.1.43.CVE-2026-96777 · Other software · Forma · reported by VulDBLow 2.1
A vulnerability was determined in Forma LMS up to 4.1.43. This impacts the function UserselectorAdmController::getDataTask of the file /appCore/ajax.adm_server.php?r=adm/userselector/getData of the component Multi-User-Selector AJAX Endpoint. This manipulation of the argument Name causes sql injection. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Product
LMS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Sep 23, 2026MasterStudy LMS: Does not perform a per-object ownership checkCVE-2026-81339 · WordPress plugins & themes · reported by WPScanMedium 4.3
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform a per-object ownership check when returning a quiz attempt result, allowing any authenticated user with a minimal (subscriber) role to read other students' quiz grades, pass/fail status and attempt timestamps by referencing an attempt identifier belonging to another user.
Product
MasterStudy LMS
Fixed in
3.7.50
What to do
Update MasterStudy LMS to 3.7.50 or newer.
Full record and what to do →NVD record wpscan.com
Sep 23, 2026MasterStudy LMS: Does not properly sanitise and restrict HTML in user-submitted content before storing it and rendering it to other usersCVE-2026-81338 · WordPress plugins & themes · reported by WPScanMedium 4.6
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not properly sanitise and restrict HTML in user-submitted content before storing it and rendering it to other users, allowing users with subscriber-level accounts and above to perform stored HTML injection, such as embedding iframes, that can be leveraged for phishing and content spoofing against other users viewing the content.
Product
MasterStudy LMS
Fixed in
3.7.50
What to do
Update MasterStudy LMS to 3.7.50 or newer.
Full record and what to do →NVD record wpscan.com
Sep 22, 2026Tutor LMS – eLearning and online course solution: Insecure Direct Object ReferenceCVE-2026-18439 · WordPress plugins & themes · reported by WordfenceMedium 4.3
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 4.0.7 via the tutor_quiz_builder_save AJAX action due to missing validation that nested question_id, answer_id, deleted_question_ids[], and deleted_answer_ids[] values in the submitted payload belong to a quiz/topic/course the requester is authorized to manage. The handler only validates the top-level course_id, topic_id, and (when supplied) payload['ID'], but the nested identifiers are passed straight into $wpdb->update/DELETE statements in QuizBuilder::save_questions(), QuizBuilder::save_question_answers(), and QuizBuilder::handle_delete(). This makes it possible for authenticated attackers, with Instructor-level access and above, to overwrite the content and re-parent arbitrary quiz questions/answers belonging to other instructors or administrators, and to delete arbitrary quiz question and answer rows.
Product
Tutor LMS – eLearning and online course solution
Affected
up to 4.0.7
What to do
Affects up to 4.0.7. Update Tutor LMS – eLearning and online course solution to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 18, 2026Tutor LMS – eLearning and online course solution: Insecure Direct Object ReferenceCVE-2026-89333 · WordPress plugins & themes · reported by WordfenceMedium 6.5
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.0.8 via the 'student_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to disclose the email address and Tutor profile phone number of arbitrary WordPress users, including Administrators, by iterating over user IDs via the student_id parameter.
Product
Tutor LMS – eLearning and online course solution
Affected
up to 4.0.8
What to do
Affects up to 4.0.8. Update Tutor LMS – eLearning and online course solution to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 18, 2026Tutor LMS – eLearning and online course solution: Reflected Cross-Site ScriptingCVE-2026-89081 · WordPress plugins & themes · reported by WordfenceMedium 6.1
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'search' parameter in all versions up to, and including, 4.0.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Product
Tutor LMS – eLearning and online course solution
Affected
up to 4.0.8
What to do
Affects up to 4.0.8. Update Tutor LMS – eLearning and online course solution to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 18, 2026Tutor LMS – eLearning and online course solution: Authorization bypassCVE-2026-88944 · WordPress plugins & themes · reported by WordfenceMedium 4.3
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.0.8. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to permanently delete arbitrary WordPress posts — including pages, courses, quizzes, and WooCommerce products — via wp_delete_post( $id, true ). The exploit chain requires the attacker to first trigger the profile-photo upload flow to obtain an authored wp_posts attachment row, then create a Tutor topic reparented to that attachment, before invoking the lesson deletion handler against any target post ID.
Product
Tutor LMS – eLearning and online course solution
Affected
up to 4.0.8
What to do
Affects up to 4.0.8. Update Tutor LMS – eLearning and online course solution to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 18, 2026MasterStudy LMS: Does not verify that the requesting user owns the course before returning its enrolled-student dataCVE-2026-88844 · WordPress plugins & themes · reported by WPScanLow 2.7
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not verify that the requesting user owns the course before returning its enrolled-student data, allowing users with the MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50's Instructor role to disclose the names and email addresses of students enrolled in other instructors' courses.
Product
MasterStudy LMS
Fixed in
3.7.50
What to do
Update MasterStudy LMS to 3.7.50 or newer.
Full record and what to do →NVD record wpscan.com
Sep 18, 2026MasterStudy LMS: Does not perform per-object ownership or capability checksCVE-2026-81340 · WordPress plugins & themes · reported by WPScanLow 3.8
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform per-object ownership or capability checks when updating orders through its REST API, allowing users with the Instructor role to modify any order on the site, granting free course enrolment, revoking other users' paid enrolments, and tampering with order notes.
Product
MasterStudy LMS
Fixed in
3.7.50
What to do
Update MasterStudy LMS to 3.7.50 or newer.
Full record and what to do →NVD record wpscan.com
Sep 17, 2026Frappe Learning Management System (LMS) is a learning system that helps users structure their content.CVE-2026-54343 · Other software · frappe · reported by GitHubHigh 8.7
Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Prior to version 2.52.1, a remote attacker can request a traversal path handled by SCORMRenderer.render in lms/page_renderers.py. The renderer constructs and opens a server-side path without first confirming that its real path remains within public/scorm, allowing files outside the SCORM directory to be read when they are accessible to the server process. This issue is fixed in version 2.52.1.
Product
lms
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Sep 17, 2026Chamilo LMS is an open-source learning management system.CVE-2026-45143 · Other software · chamilo · reported by GitHubCritical 9
Chamilo LMS is an open-source learning management system. From 2.0.0 through at least 2.1.0, Chamilo LMS stores private Message.content without server-side sanitization and renders it as HTML in assets/vue/views/message/MessageShow.vue and public/main/template/default/message/view_message.html.twig. An authenticated low-privilege user, including a student, can directly address crafted message content to an administrator because the message creation flow permits a sender to select another user as the recipient. The content executes in the recipient's browser when the recipient opens the routine inbox or message view, without requiring a link click, and can expose session credentials or permit actions as the administrator. This vulnerability is fixed in 2.0.1.
Product
chamilo-lms
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Sep 17, 2026Chamilo LMS is an open-source learning management system.CVE-2026-45140 · Other software · chamilo · reported by GitHubCritical 9.8
Chamilo LMS is an open-source learning management system. Prior to 2.0.1, Chamilo LMS allows an unauthenticated remote attacker to execute arbitrary code on the server. The authoritative advisory does not identify the affected endpoint, component, input, or exploitation mechanism. This issue is fixed in version 2.0.1.
Product
chamilo-lms
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Sep 16, 2026Tutor LMS: Does not check that a user has access to a course before returning its lesson discussion contentCVE-2026-85572 · WordPress plugins & themes · reported by WPScanMedium 4.3
The Tutor LMS WordPress plugin before 4.0.8 does not check that a user has access to a course before returning its lesson discussion content, allowing any authenticated user, such as a subscriber, to read comments from courses they are not enrolled in, including comments awaiting moderation.
Product
Tutor LMS
Fixed in
4.0.8
What to do
Update Tutor LMS to 4.0.8 or newer.
Full record and what to do →NVD record wpscan.com
Sep 16, 2026Tutor LMS: Does not correctly determine whether an incoming request is addressed to its own REST APICVE-2026-85569 · WordPress plugins & themes · reported by WPScanHigh 7.2
The Tutor LMS WordPress plugin before 4.0.8 does not correctly determine whether an incoming request is addressed to its own REST API, and does not enforce the permission recorded against an API credential, allowing the holder of a read-only key to act as the administrator account that issued it.
Product
Tutor LMS
Fixed in
4.0.8
What to do
Update Tutor LMS to 4.0.8 or newer.
Full record and what to do →NVD record wpscan.com
Sep 15, 2026A flaw was found in gss-ntlmssp.CVE-2026-91926 · Other software · Red Hat · reported by Red HatLow 3.7
A flaw was found in gss-ntlmssp. A memory leak occurs in the NTLM target-info parser when a crafted NTLM CHALLENGE message contains duplicated string-valued AV_PAIR entries. The parser allocates memory for each string value but does not free the previous allocation when the same AV_PAIR type appears more than once, leaking the earlier allocation. A malicious or man-in-the-middle server can exploit this to cause gradual memory exhaustion on the client during NTLM authentication, leading to a denial of service.
Product
Red Hat Enterprise Linux 8
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record access.redhat.com bugzilla.redhat.com
Sep 12, 2026Tutor LMS – eLearning and online course solution: PHP Object InjectionCVE-2026-78175 · WordPress plugins & themes · reported by WordfenceHigh 8.8
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 4.0.7 via the `withdraw_method_field` parameter of the `tutor_save_withdraw_account` AJAX handler. This is due to the handler lacking any capability or role check, relying solely on a nonce, while also passing attacker-supplied values through `esc_sql()`, which replaces every `%` character with a 66-byte HMAC placeholder token before the data is serialized and stored via `update_user_meta()`; when the meta is later retrieved, the placeholder is collapsed back to a single `%`, leaving serialized string length declarations 65 bytes greater than the actual content, and because array keys originate from entirely unescaped POST field names, `unserialize()` over-reads into attacker-controlled bytes, allowing injection of an arbitrary serialized object stream. This makes it possible for authenticated attackers, with subscriber-level access and above, to achieve remote code execution on the server by triggering the `GuzzleHttp\Cookie\FileCookieJar` POP chain, reachable via the `spl_autoload_register` loader in `TUTOR\RestAPI` which loads the
Product
Tutor LMS – eLearning and online course solution
Affected
up to 4.0.7
What to do
Affects up to 4.0.7. Update Tutor LMS – eLearning and online course solution to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 12, 2026DT LMS – elearning, WordPress LMS: Unauthorized modification of dataCVE-2026-11355 · WordPress plugins & themes · reported by WordfenceMedium 5.3
The DT LMS – elearning, WordPress LMS plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on multiple AJAX handlers (including dtlms_save_poc_settings, dtlms_save_skin_settings, and dtlms_save_options_settings) in versions up to, and including, 1.1. These handlers are registered on the wp_ajax_nopriv_* hook and contain no capability check, no nonce verification, and pass user-supplied data directly to update_option(). This makes it possible for unauthenticated attackers to overwrite arbitrary plugin option values stored in the wp_options table, including Point-of-Contact email configuration and skin/branding settings, which can be used to alter the appearance and behavior of the LMS for all site visitors.
Product
DT LMS – elearning, WordPress LMS
Affected
up to 1.1
What to do
Affects up to 1.1. Update DT LMS – elearning, WordPress LMS to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 12, 2026Masteriyo LMS: Does not verify ownership ofCVE-2026-82851 · WordPress plugins & themes · reported by WPScanLow 2.7
The Masteriyo LMS WordPress plugin before 3.4.1 does not verify ownership of, or restrict the type of, the records a user requests for download, allowing users with the instructor role to retrieve the full content and metadata of arbitrary posts, including other instructors' private and draft courses.
Product
Masteriyo LMS
Fixed in
3.4.1
What to do
Update Masteriyo LMS to 3.4.1 or newer.
Full record and what to do →NVD record wpscan.com
Sep 12, 2026Masteriyo LMS: Does not sanitise and escape one of its course fields before outputting it back in the course editorCVE-2026-82847 · WordPress plugins & themes · reported by WPScanMedium 6.8
The Masteriyo LMS WordPress plugin before 3.4.1 does not sanitise and escape one of its course fields before outputting it back in the course editor, allowing users with the instructor role to perform Stored Cross-Site Scripting attacks against higher privileged users such as administrators.
Product
Masteriyo LMS
Fixed in
3.4.1
What to do
Update Masteriyo LMS to 3.4.1 or newer.
Full record and what to do →NVD record wpscan.com
Sep 12, 2026Masteriyo LMS: Does not prevent user-supplied values heldCVE-2026-82845 · WordPress plugins & themes · reported by WPScanCritical 9.9
The Masteriyo LMS WordPress plugin before 3.4.1 does not prevent user-supplied values held as metadata from being deserialized when they are read back, allowing users with a minimal account to inject arbitrary PHP objects and, by way of a class shipped in a library bundled with the Masteriyo LMS WordPress plugin before 3.4.1, write and execute arbitrary code on the server. A weaker form of the same issue is reachable without an account and yields an arbitrary file write rather than code execution.
Product
Masteriyo LMS
Fixed in
3.4.1
What to do
Update Masteriyo LMS to 3.4.1 or newer.
Full record and what to do →NVD record wpscan.com
Sep 11, 2026In the Linux kernel, the following vulnerability has been resolved: lockd, nfsd: RCU-protect nlmsvc_ops dispatch nlmsvc_ops is published by nfsd_lockd_init() CVE-2026-89709 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 8.1
In the Linux kernel, the following vulnerability has been resolved: lockd, nfsd: RCU-protect nlmsvc_ops dispatch nlmsvc_ops is published by nfsd_lockd_init() and cleared by nfsd_lockd_shutdown() with plain stores, while lockd dereferences it unguarded from dispatch sites in fs/lockd/svcsubs.c. The pointer targets nfsd's .rodata and the fopen/fclose callbacks live in nfsd's .text, so a stale load after rmmod nfsd results in either a NULL deref or a module-text use-after-free. Declare nlmsvc_ops as __rcu, publish via rcu_assign_pointer(), clear via RCU_INIT_POINTER() + synchronize_rcu(). Add a struct module *owner field to nlmsvc_binding and pin the module across indirect calls with try_module_get/module_put. When the binding is torn down, fall back to fput() to avoid leaking struct file references.
Product
Linux
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record git.kernel.org git.kernel.org
Sep 11, 2026Subscriber Broken Access Control in Masteriyo - LMS <= 3.4.0 versions.CVE-2026-62132 · WordPress plugins & themes · reported by PatchstackMedium 5.3
Subscriber Broken Access Control in Masteriyo - LMS <= 3.4.0 versions.
Affected
up to 3.4.0
What to do
Affects up to 3.4.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 11, 2026Unauthenticated PHP Object Injection in Masteriyo - LMS <= 3.4.0 versions.CVE-2026-62107 · WordPress plugins & themes · reported by PatchstackHigh 8.8
Unauthenticated PHP Object Injection in Masteriyo - LMS <= 3.4.0 versions.
Affected
up to 3.4.0
What to do
Affects up to 3.4.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 11, 2026Chamilo LMS before 1.11.42 and 3.0.0 contains a stored cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious script payloCVE-2026-82535 · Other software · chamilo · reported by VulnCheckMedium 5.3
Chamilo LMS before 1.11.42 and 3.0.0 contains a stored cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious script payloads into survey answers by computing deterministic invitation codes and bypassing authorization checks in the survey submission endpoint. Attackers can submit crafted answers containing unescaped HTML rendered in reporting views to execute arbitrary scripts in the browser sessions of teachers or administrators, enabling persistent backdoor account creation by exploiting the victim's authenticated session.
Product
chamilo-lms
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Sep 9, 2026Masteriyo LMS: Does not perform any authorization check before returning a course enrolment record over its REST APICVE-2026-82848 · WordPress plugins & themes · reported by WPScanMedium 5.3
The Masteriyo LMS WordPress plugin before 3.4.0 does not perform any authorization check before returning a course enrolment record over its REST API, allowing unauthenticated users to read any learner's enrolment status, timestamps and course-progress data by walking sequential record identifiers. A related gap lets any enrolled user retrieve other learners' enrolment records as well.
Product
Masteriyo LMS
Fixed in
3.4.0
What to do
Update Masteriyo LMS to 3.4.0 or newer.
Full record and what to do →NVD record wpscan.com
Sep 8, 2026LearnPress – WordPress LMS Plugin for Create and Sell Online Courses: Stored Cross-Site ScriptingCVE-2026-12230 · WordPress plugins & themes · reported by WordfenceMedium 6.4
The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'layout_custom_css' parameter in all versions up to, and including, 4.3.9.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Product
LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
Affected
up to 4.3.9.1
What to do
Affects up to 4.3.9.1. Update LearnPress – WordPress LMS Plugin for Create and Sell Online Courses to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 7, 2026Masteriyo LMS: Unauthorized data deletionCVE-2026-8279 · WordPress plugins & themes · reported by WordfenceMedium 5.3
The Masteriyo LMS plugin for WordPress is vulnerable to unauthorized data deletion due to a missing capability check on the 'delete_item_permissions_check' function in the CourseProgressItemsController in all versions up to, and including, 2.2.0. This makes it possible for unauthenticated attackers to delete arbitrary course progress records belonging to any student.
Product
Masteriyo LMS
Affected
up to 2.2.0
What to do
Affects up to 2.2.0. Update Masteriyo LMS to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 5, 2026LearnDash LMS: Authorization bypassCVE-2026-12843 · WordPress plugins & themes · reported by WordfenceMedium 5.4
The LearnDash LMS plugin for WordPress is vulnerable to authorization bypass in versions 4.25.0 - 5.1.6. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to enroll arbitrary users in paid courses without payment verification, bypassing the entire payment system and gaining unauthorized access to premium educational content.
Product
LearnDash LMS
Affected
4.25.0 to 5.1.6
What to do
Affects 4.25.0 to 5.1.6. Update LearnDash LMS to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record docs.nexcess.com wordfence.com
Sep 5, 2026Masteriyo LMS: Does not sanitise and escape some course settings before outputting them in a page available to all visitorsCVE-2026-82846 · WordPress plugins & themes · reported by WPScanMedium 6.8
The Masteriyo LMS WordPress plugin before 3.4.0 does not sanitise and escape some course settings before outputting them in a page available to all visitors, allowing users with a course-author role to perform Stored Cross-Site Scripting attacks that run in the session of anyone viewing the course, including a logged-in administrator.
Product
Masteriyo LMS
Fixed in
3.4.0
What to do
Update Masteriyo LMS to 3.4.0 or newer.
Full record and what to do →NVD record wpscan.com
Sep 4, 2026LearnDash LMS: Unrestricted File Type UploadCVE-2026-12483 · WordPress plugins & themes · reported by WordfenceHigh 7.5
The LearnDash LMS plugin for WordPress is vulnerable to Unrestricted File Type Upload in versions up to and including 5.1.5. This is due to insufficient input validation in the 'learndash_fileupload_process' function, which iterates through an entire array and validates only the first file. This makes it possible for authenticated attackers, with subscriber-level access and above who are enrolled in a course with assignment uploads enabled, to upload arbitrary disallowed files, including PHP files, to the server's wp-content/uploads/learndash/assignments/ directory. The uploaded files can only be used for Remote Code Execution if default server configurations have been changed to allow for execution.
Product
LearnDash LMS
Affected
up to 5.1.5
What to do
Affects up to 5.1.5. Update LearnDash LMS to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record liquidweb.com wordfence.com
Sep 3, 2026Subscriber Broken Access Control in Agentimus – AI SEO, llms.txt & MCP for AI Agents <= 1.51.0 versions.CVE-2026-84779 · WordPress plugins & themes · reported by PatchstackHigh 8.1
Subscriber Broken Access Control in Agentimus – AI SEO, llms.txt & MCP for AI Agents <= 1.51.0 versions.
Affected
up to 1.51.0
What to do
Affects up to 1.51.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 2, 2026MasterStudy LMS: Does not perform an authorization check before returning a student's learning statisticsCVE-2026-81199 · WordPress plugins & themes · reported by WPScanMedium 5.3
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not perform an authorization check before returning a student's learning statistics, allowing unauthenticated attackers to disclose the course counts, points, certificates, quiz and assignment totals of any registered user.
Product
MasterStudy LMS
Fixed in
3.7.46
What to do
Update MasterStudy LMS to 3.7.46 or newer.
Full record and what to do →NVD record wpscan.com
Sep 2, 2026MasterStudy LMS: Does not properly verify ownership of a curriculum object before acting on itCVE-2026-81198 · WordPress plugins & themes · reported by WPScanLow 3.8
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of a curriculum object before acting on it, allowing authenticated users with the instructor role to delete or modify curriculum sections and materials belonging to courses owned by other instructors.
Product
MasterStudy LMS
Fixed in
3.7.46
What to do
Update MasterStudy LMS to 3.7.46 or newer.
Full record and what to do →NVD record wpscan.com
Sep 2, 2026MasterStudy LMS: Does not restrict access to a REST route that lists an author's coursesCVE-2026-81197 · WordPress plugins & themes · reported by WPScanMedium 5.3
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not restrict access to a REST route that lists an author's courses, nor does it filter that listing by publication status, allowing unauthenticated users to read the titles and IDs of unpublished (draft, pending and private) courses.
Product
MasterStudy LMS
Fixed in
3.7.46
What to do
Update MasterStudy LMS to 3.7.46 or newer.
Full record and what to do →NVD record wpscan.com
Sep 2, 2026MasterStudy LMS: Does not properly verify ownership of quiz question identifiersCVE-2026-81196 · WordPress plugins & themes · reported by WPScanLow 2.7
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of quiz question identifiers, allowing users with instructor access to read other instructors' quiz questions, including the correct answers and explanations.
Product
MasterStudy LMS
Fixed in
3.7.46
What to do
Update MasterStudy LMS to 3.7.46 or newer.
Full record and what to do →NVD record wpscan.com
Sep 2, 2026MasterStudy LMS: Does not perform an authorization check before returning per-student course enrollment and progress dataCVE-2026-81195 · WordPress plugins & themes · reported by WPScanMedium 5.3
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not perform an authorization check before returning per-student course enrollment and progress data, allowing unauthenticated attackers to disclose the enrolled courses and learning progress of any registered user.
Product
MasterStudy LMS
Fixed in
3.7.46
What to do
Update MasterStudy LMS to 3.7.46 or newer.
Full record and what to do →NVD record wpscan.com
Sep 2, 2026MasterStudy LMS: Does not properly verify authorizationCVE-2026-81194 · WordPress plugins & themes · reported by WPScanMedium 4.3
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify authorization when retrieving order line-item data, allowing any authenticated user including Subscribers to read other instructors' course sales records by supplying another user's identifier.
Product
MasterStudy LMS
Fixed in
3.7.46
What to do
Update MasterStudy LMS to 3.7.46 or newer.
Full record and what to do →NVD record wpscan.com
Aug 29, 2026MasterStudy LMS: Does not validate a redirect parameter supplied during user registration before using itCVE-2026-81342 · WordPress plugins & themes · reported by WPScanMedium 4.7
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.43 does not validate a redirect parameter supplied during user registration before using it, allowing unauthenticated attackers to redirect users to arbitrary external URLs.
Product
MasterStudy LMS
Fixed in
3.7.43
What to do
Update MasterStudy LMS to 3.7.43 or newer.
Full record and what to do →NVD record wpscan.com
Aug 29, 2026MasterStudy LMS: Does not correctly restrict access to order informationCVE-2026-81200 · WordPress plugins & themes · reported by WPScanLow 2.7
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.42 does not correctly restrict access to order information, allowing any user with the instructor role to read other users' order billing details, including name, email address, phone number and postal address, by enumerating order IDs.
Product
MasterStudy LMS
Fixed in
3.7.42
What to do
Update MasterStudy LMS to 3.7.42 or newer.
Full record and what to do →NVD record wpscan.com
Aug 29, 2026MasterStudy LMS: Does not verify the amountCVE-2026-81026 · WordPress plugins & themes · reported by WPScanMedium 4.8
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.40 does not verify the amount, receiver, currency or status of a payment notification before marking the corresponding order completed, allowing unauthenticated users to complete full-price orders and gain access to paid content by paying only a token amount.
Product
MasterStudy LMS
Fixed in
3.7.40
What to do
Update MasterStudy LMS to 3.7.40 or newer.
Full record and what to do →NVD record wpscan.com
Aug 28, 2026Tutor LMS – eLearning and online course solution: Remote Code Execution limited to zero-argument function invocationCVE-2026-16759 · WordPress plugins & themes · reported by WordfenceMedium 6.5
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Remote Code Execution limited to zero-argument function invocation in all versions up to, and including, 4.0.5 via the tutor_course_filter_ajax AJAX action. This is due to missing authorization on the handler combined with unsanitized array keys being passed to extract() inside tutor_load_template(), allowing attacker-controlled POST data to overwrite the local $template variable and, in the resulting templates/single-content-loader.php template, the $method_map and $context variables invoked at $method_map[$context](). This makes it possible for unauthenticated attackers to call an arbitrary zero-argument PHP function server-side and, via WordPress core edit_user(), to create a persistent subscriber-level account from request parameters.
Product
Tutor LMS – eLearning and online course solution
Affected
up to 4.0.5
What to do
Affects up to 4.0.5. Update Tutor LMS – eLearning and online course solution to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Aug 27, 2026Tutor LMS: Does not prevent request data from overwriting internal variables while rendering templatesCVE-2026-19092 · WordPress plugins & themes · reported by WPScanCritical 9.8
The Tutor LMS WordPress plugin before 4.0.6 does not prevent request data from overwriting internal variables while rendering templates, allowing unauthenticated users to invoke arbitrary zero-argument PHP functions and receive their output.
Product
Tutor LMS
Fixed in
4.0.6
What to do
Update Tutor LMS to 4.0.6 or newer.
Full record and what to do →NVD record wpscan.com
Aug 26, 2026Tutor LMS: Does not validate values used to build a database queryCVE-2026-19094 · WordPress plugins & themes · reported by WPScanMedium 5.3
The Tutor LMS WordPress plugin before 4.0.6 does not validate values used to build a database query, and does not restrict which template file a request may load, allowing unauthenticated users to inject SQL and to read question and answer content belonging to courses that are not publicly available. The injected text reaches the query as grammar rather than as data, and on the database engines tested it does not yield extraction of arbitrary data, so the confidentiality impact is the disclosed course content rather than the database at large.
Product
Tutor LMS
Fixed in
4.0.6
What to do
Update Tutor LMS to 4.0.6 or newer.
Full record and what to do →NVD record wpscan.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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