CVE-2026-78055 SourceCodester Class and Exam Timetabling System BSIT2.php cross site scripting
Attackers can inject malicious scripts via the course argument in BSIT2.php, potentially compromising user sessions or executing code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-78055?
CVE-2026-78055 is a medium-severity cross-site scripting vulnerability in SourceCodester Class and Exam Timetabling System, published on 23 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A security vulnerability has been detected in SourceCodester Class and Exam Timetabling System 1.0. Affected by this vulnerability is an unknown functionality of the file /BSIT2.php. The manipulation of the argument course leads to cross site scripting. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.
Which versions are affected by CVE-2026-78055?
How do I fix CVE-2026-78055?
No fix has been published for CVE-2026-78055 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-2026-78055 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78055 exists.
Sources
Also known as GHSA-8wh2-r774-f9x3.