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.
12 results
Oct 5, 2026openSIS Classic 9.3 allows an authenticated user with the built-in teacher role can select an arbitrary staff record through staff_id and cause the School InforCVE-2026-91107 · Other software · OS4ED · reported by help@fluidattacks.comCritical 9.3
openSIS Classic 9.3 allows an authenticated user with the built-in teacher role can select an arbitrary staff record through staff_id and cause the School Information update path to reset that selected account's password.
- Product
- openSIS-Classic
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfluidattacks.comgithub.com
Sep 30, 2026A security vulnerability has been detected in OS4ED openSIS-Classic up to 9.3.CVE-2026-103117 · Other software · OS4ED · reported by VulDBLow 2
A security vulnerability has been detected in OS4ED openSIS-Classic up to 9.3. Affected is the function db_properties of the file functions/DatabaseInc.php of the component Save Data Handler. Such manipulation of the argument values leads to sql injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
- Product
- openSIS-Classic
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 30, 2026A weakness has been identified in OS4ED openSIS-Classic up to 9.3.CVE-2026-103116 · Other software · OS4ED · reported by VulDBLow 2.1
A weakness has been identified in OS4ED openSIS-Classic up to 9.3. This impacts the function DBQuery of the file functions/GetStuListFnc.php of the component Student List Search Endpoint. This manipulation of the argument LO_sort causes sql injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
- Product
- openSIS-Classic
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 30, 2026A security flaw has been discovered in OS4ED openSIS-Classic up to 9.3.CVE-2026-103115 · Other software · OS4ED · reported by VulDBLow 2.1
A security flaw has been discovered in OS4ED openSIS-Classic up to 9.3. This affects an unknown function of the file functions/CustomFieldsFnc.php of the component Student Search. The manipulation of the argument cust results in sql injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
- Product
- openSIS-Classic
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 30, 2026A vulnerability was identified in OS4ED openSIS-Classic up to 9.3.CVE-2026-103114 · Other software · OS4ED · reported by VulDBLow 2.1
A vulnerability was identified in OS4ED openSIS-Classic up to 9.3. The impacted element is the function DBQuery_assignment of the file modules/grades/Assignments.php of the component Assignment Management Endpoint. The manipulation of the argument Tables leads to sql injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
- Product
- openSIS-Classic
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 30, 2026A vulnerability was determined in OS4ED openSIS-Classic up to 9.3.CVE-2026-103113 · Other software · OS4ED · reported by VulDBLow 2
A vulnerability was determined in OS4ED openSIS-Classic up to 9.3. The affected element is the function save action of the file modules/students/Student.php of the component General Information Tab. Executing a manipulation of the argument students can lead to sql injection. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
- Product
- openSIS-Classic
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026openSIS Classic 9.3 contains an authenticated path traversal vulnerability in the legacy messaging sent-mail attachment download functionality that allows an auCVE-2026-11944 · Other software · OS4ED · reported by help@fluidattacks.comMedium 5.3
openSIS Classic 9.3 contains an authenticated path traversal vulnerability in the legacy messaging sent-mail attachment download functionality that allows an authenticated attacker to read arbitrary files on the server via crafted path traversal sequences.
- Product
- openSIS-Classic
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfluidattacks.comgithub.com
Jun 11, 2026openSIS Classic 9.3 contains an insecure direct object reference vulnerability in the messaging module.CVE-2026-8406 · Other software · OS4ED · reported by help@fluidattacks.comHigh 7.1
openSIS Classic 9.3 contains an insecure direct object reference vulnerability in the messaging module. Any authenticated user with access to the messaging module can request sent-message details from modules/messaging/SentMail.php by supplying an arbitrary mail_id value.
- Product
- openSIS-Classic
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfluidattacks.comgithub.com
Nov 8, 2024SQL injection vulnerability exists in OS4ED openSIS-Classic Version 9.1, specifically in the resetuserinfo.php file.CVE-2024-51211 · Other software · os4ed · reported by MITRECritical 9.8
SQL injection vulnerability exists in OS4ED openSIS-Classic Version 9.1, specifically in the resetuserinfo.php file. The vulnerability is due to improper input validation of the $username_stn_id parameter, which can be manipulated by an attacker to inject arbitrary SQL commands.
- Product
- opensis-classic
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 2, 2024OS4ED openSIS-Classic v9.1 was discovered to contain a SQL injection vulnerability via a crafted payload.CVE-2024-46626 · Other software · os4ed · reported by MITREHigh 8.8
OS4ED openSIS-Classic v9.1 was discovered to contain a SQL injection vulnerability via a crafted payload.
- Product
- opensis
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 11, 2021Opensis-Classic Version 8.0 is affected by a SQL injection vulnerability due to a lack of sanitization of input data at two parameters $_GET['usrid'] and $_GET[CVE-2021-40543 · Other software · Os4ed · reported by MITRECritical 9.8
Opensis-Classic Version 8.0 is affected by a SQL injection vulnerability due to a lack of sanitization of input data at two parameters $_GET['usrid'] and $_GET['prof_id'] in the PasswordCheck.php file.
- Product
- Opensis
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 11, 2021Opensis-Classic Version 8.0 is affected by cross-site scripting (XSS).CVE-2021-40542 · Other software · Os4ed · reported by MITREMedium 6.1
Opensis-Classic Version 8.0 is affected by cross-site scripting (XSS). An unauthenticated user can inject and execute JavaScript code through the link_url parameter in Ajax_url_encode.php.
- Product
- Opensis
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
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.
Weekly security brief
The flaws that hit local websites, every Friday.
One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.
Tell us what you're building.
A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.
Not ready to talk yet? Run the free website check and see what Google sees.