CVE-2026-4578 code-projects Exam Form Submission update_s3.php cross site scripting
Remote attackers can inject malicious scripts via the sname parameter in the admin update form, potentially compromising user sessions.
- 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-2026-4578?
CVE-2026-4578 is a medium-severity cross-site scripting vulnerability in code-projects Exam Form Submission, published on 23 Mar 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
A vulnerability was determined in code-projects Exam Form Submission 1.0. The impacted element is an unknown function of the file /admin/update_s3.php. Executing a manipulation of the argument sname can lead to cross site scripting. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
Which versions are affected by CVE-2026-4578?
How do I fix CVE-2026-4578?
No fix has been published for CVE-2026-4578 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-2026-4578 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4578 exists.
Sources
Also known as GHSA-fw33-9hq6-22wp.