Updated 6 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

303new WordPress flaws this week

390,007entries in the database

20 results

Oct 16, 2026Gwolle Guestbook: Reflected Cross-Site ScriptingCVE-2026-103481 · WordPress plugins & themes · reported by WordfenceMedium 6.1
The Gwolle Guestbook plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'permalink' parameter in all versions up to, and including, 5.1.1 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
Gwolle Guestbook
Affected
up to 5.1.1
What to do
Affects up to 5.1.1. Update Gwolle Guestbook 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 codeberg.org plugins.trac.wordpress.org
May 12, 2026FastBots: Stored Cross-Site ScriptingCVE-2026-6800 · WordPress plugins & themes · reported by WordfenceMedium 4.4
The FastBots plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.0.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Product
FastBots
Affected
up to 1.0.12
What to do
Affects up to 1.0.12. Update FastBots 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
Feb 20, 2026Nestbyte Core: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')CVE-2025-69308 · WordPress plugins & themes · reported by PatchstackCritical 9.3
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in TeconceTheme Nestbyte Core nestbyte-core allows Blind SQL Injection.This issue affects Nestbyte Core: from n/a through <= 1.2.
Product
Nestbyte Core
Affected
up to 1.2
What to do
Affects up to 1.2. Update Nestbyte Core 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
Jul 9, 2025Gwolle Guestbook: Stored Cross-Site ScriptingCVE-2025-5807 · WordPress plugins & themes · reported by WordfenceMedium 6.1
The Gwolle Guestbook plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘gwolle_gb_content’ parameter in all versions up to, and including, 4.9.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Product
Gwolle Guestbook
Affected
up to 4.9.2
What to do
Affects up to 4.9.2. Update Gwolle Guestbook 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 wordfence.com
Jun 27, 2025FastBook: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2025-25173 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in FasterThemes FastBook fastbook-responsive-appointment-booking-and-scheduling-system allows Stored XSS.This issue affects FastBook: from n/a through <= 1.1.
Product
FastBook
Affected
up to 1.1
What to do
Affects up to 1.1. Update FastBook 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
Jun 6, 2025FastBook: Cross-Site Request Forgery (CSRF)CVE-2025-26593 · WordPress plugins & themes · reported by PatchstackMedium 4.3
Cross-Site Request Forgery (CSRF) vulnerability in FasterThemes FastBook fastbook-responsive-appointment-booking-and-scheduling-system allows Cross Site Request Forgery.This issue affects FastBook: from n/a through <= 1.1.
Product
FastBook
Affected
up to 1.1
What to do
Affects up to 1.1. Update FastBook 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
Mar 26, 2025Rizzi Guestbook: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2025-26573 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in JamRizzi Technologies Rizzi Guestbook rizzi-guestbook allows Reflected XSS.This issue affects Rizzi Guestbook: from n/a through <= 4.0.1.
Product
Rizzi Guestbook
Affected
up to 4.0.1
What to do
Affects up to 4.0.1. Update Rizzi Guestbook 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
Jan 31, 2025Gwolle Guestbook: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2025-24710 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Marcel Pol Gwolle Guestbook gwolle-gb allows Reflected XSS.This issue affects Gwolle Guestbook: from n/a through <= 4.7.1.
Product
Gwolle Guestbook
Affected
up to 4.7.1
What to do
Affects up to 4.7.1. Update Gwolle Guestbook 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
Dec 13, 2024PostBox: Insertion of Sensitive Information Into Sent DataCVE-2024-54309 · WordPress plugins & themes · reported by PatchstackMedium 6.5
Insertion of Sensitive Information Into Sent Data vulnerability in wpdebuglog PostBox postbox-email-logs allows Retrieve Embedded Sensitive Data.This issue affects PostBox: from n/a through <= 1.0.4.
Product
PostBox
Affected
up to 1.0.4
What to do
Affects up to 1.0.4. Update PostBox 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
Dec 2, 2024FastBook: Cross-Site Request Forgery (CSRF)CVE-2024-53762 · WordPress plugins & themes · reported by PatchstackHigh 7.1
Cross-Site Request Forgery (CSRF) vulnerability in FasterThemes FastBook fastbook-responsive-appointment-booking-and-scheduling-system allows Stored XSS.This issue affects FastBook: from n/a through <= 1.1.
Product
FastBook
Affected
up to 1.1
What to do
Affects up to 1.1. Update FastBook 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
May 2, 2024Tabellen von faustball.com: Stored Cross-Site ScriptingCVE-2024-4085 · WordPress plugins & themes · reported by WordfenceMedium 4.4
The Tabellen von faustball.com plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.0.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Product
Tabellen von faustball.com
Affected
up to 2.0.4
What to do
Affects up to 2.0.4. Update Tabellen von faustball.com 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 wordfence.com
Sep 30, 2022Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Comment Guestbook plugin <= 0.8.0 at WordPress.CVE-2021-36830 · WordPress plugins & themes · reported by PatchstackMedium 4.8
Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Comment Guestbook plugin <= 0.8.0 at WordPress.
Affected
up to 0.8.0
What to do
Affects up to 0.8.0. 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 wordpress.org
Jun 13, 2022Bestbooks: Does not sanitise and escape some parameters before using them in a SQL statement via an AJAX actionCVE-2022-0827 · WordPress plugins & themes · reported by WPScanCritical 9.8
The Bestbooks WordPress plugin through 2.6.3 does not sanitise and escape some parameters before using them in a SQL statement via an AJAX action, leading to an SQL Injection exploitable by unauthenticated users
Product
Bestbooks
Affected
up to 2.6.3
What to do
Affects up to 2.6.3. Update Bestbooks 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 wpscan.com wpscan.com
Dec 27, 2021Gwolle Guestbook: Does not sanitise and escape the gwolle_gb_user_email parameter before outputting it back in an attributeCVE-2021-24980 · WordPress plugins & themes · reported by WPScanMedium 6.1
The Gwolle Guestbook WordPress plugin before 4.2.0 does not sanitise and escape the gwolle_gb_user_email parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue in an admin page
Product
Gwolle Guestbook
Fixed in
4.2.0
What to do
Update Gwolle Guestbook to 4.2.0 or newer.
Full record and what to do →NVD record wpscan.com wpscan.com
Oct 2, 2018XSS exists in admin/gb-dashboard-widget.php in the Gwolle Guestbook (gwolle-gb) plugin before 2.5.4 for WordPress via the PATH_INFO to wp-admin/index.phpCVE-2018-17884 · WordPress plugins & themes · reported by MITREMedium 6.1
XSS exists in admin/gb-dashboard-widget.php in the Gwolle Guestbook (gwolle-gb) plugin before 2.5.4 for WordPress via the PATH_INFO to wp-admin/index.php
Product
XSS exists in admin/gb-dashboard-widget.php in the Gwolle Guestbook (gwolle-gb)
Fixed in
2.5.4
What to do
Update XSS exists in admin/gb-dashboard-widget.php in the Gwolle Guestbook (gwolle-gb) to 2.5.4 or newer.
Full record and what to do →NVD record defensecode.com seclists.org
Sep 11, 2017PHP remote file inclusion vulnerability in the Gwolle Guestbook plugin before 1.5.4 for WordPress, when allow_url_include is enabled, allows remote authenticateCVE-2015-8351 · WordPress plugins & themes · reported by MITRECritical 9
PHP remote file inclusion vulnerability in the Gwolle Guestbook plugin before 1.5.4 for WordPress, when allow_url_include is enabled, allows remote authenticated users to execute arbitrary PHP code via a URL in the abspath parameter to frontend/captcha/ajaxresponse.php. NOTE: this can also be leveraged to include and execute arbitrary local files via directory traversal sequences regardless of whether allow_url_include is enabled.
Product
PHP remote file inclusion vulnerability in the Gwolle Guestbook
Fixed in
1.5.4
What to do
Update PHP remote file inclusion vulnerability in the Gwolle Guestbook to 1.5.4 or newer.
Full record and what to do →NVD record packetstormsecurity.com securityfocus.com
Feb 6, 2008the administration panel in the DMSGuestbook 1.7.0 plugin for: SQL injectionCVE-2008-0616 · WordPress plugins & themes · reported by MITREMedium 6.5
SQL injection vulnerability in the administration panel in the DMSGuestbook 1.7.0 plugin for WordPress allows remote authenticated administrators to execute arbitrary SQL commands via unspecified vectors. NOTE: it is not clear whether this issue crosses privilege boundaries.
Product
the administration panel in the DMSGuestbook 1.7.0 plugin for
Affected
1.7.0 to 1.7.0
What to do
Affects 1.7.0 to 1.7.0. Update the administration panel in the DMSGuestbook 1.7.0 plugin for 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 securityreason.com securityfocus.com
Feb 6, 2008Multiple cross-site scripting (XSS) vulnerabilities in the DMSGuestbook 1.7.0 plugin for WordPress allow remote attackers to inject arbitrary web script or HTMLCVE-2008-0617 · WordPress plugins & themes · reported by MITREMedium 4.3
Multiple cross-site scripting (XSS) vulnerabilities in the DMSGuestbook 1.7.0 plugin for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) file parameter to wp-admin/admin.php, or the (2) messagefield parameter in the guestbook page, and the (3) title parameter in the messagearea.
Affected
1.7.0 to 1.7.0
What to do
Affects 1.7.0 to 1.7.0. 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 securityreason.com securityfocus.com
Feb 6, 2008Multiple cross-site scripting (XSS) vulnerabilities in the DMSGuestbook 1.8.0 and 1.7.0 plugin for WordPress allow remote attackers to inject arbitrary web scriCVE-2008-0618 · WordPress plugins & themes · reported by MITREMedium 4.3
Multiple cross-site scripting (XSS) vulnerabilities in the DMSGuestbook 1.8.0 and 1.7.0 plugin for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) gbname, (2) gbemail, (3) gburl, and (4) gbmsg parameters to unspecified programs. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
What to do
Update the plugin to the newest version.
Full record and what to do →NVD record secunia.com secunia.com
Feb 6, 2008wp-admin/admin.php in the DMSGuestbook 1.8.0 and 1.7.0 plugin for: Directory traversalCVE-2008-0615 · WordPress plugins & themes · reported by MITREMedium 4
Directory traversal vulnerability in wp-admin/admin.php in the DMSGuestbook 1.8.0 and 1.7.0 plugin for WordPress allows remote authenticated users to read arbitrary files via a .. (dot dot) in the (1) folder and (2) file parameters.
Product
wp-admin/admin.php in the DMSGuestbook 1.8.0 and 1.7.0 plugin for
What to do
Update wp-admin/admin.php in the DMSGuestbook 1.8.0 and 1.7.0 plugin for to the newest version.
Full record and what to do →NVD record secunia.com securityreason.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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