CVE-2026-5668 Cyber-III Student-Management-System add%20notice.php cross site scripting
Remote attackers can execute arbitrary scripts via XSS in the admin notice module, potentially compromising user accounts.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-5668?
CVE-2026-5668 is a medium-severity cross-site scripting vulnerability in Cyber-III Student-Management-System, published on 6 Apr 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
A flaw has been found in Cyber-III Student-Management-System up to 1a938fa61e9f735078e9b291d2e6215b4942af3f. This affects an unknown part of the file /admin/Add%20notice/add%20notice.php. This manipulation of the argument $_SERVER['PHP_SELF'] causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been published and may be used. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-5668?
How do I fix CVE-2026-5668?
No fix has been published for CVE-2026-5668 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-5668 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5668 exists.
Sources
Also known as GHSA-v9r5-qwpw-xpgf.