Vulnerability · Published Aug 23, 2026 · Assigned by VulDB
CVE-2026-78054SourceCodester Class and Exam Timetabling System BSIS1.php cross site scripting
Medium 4.3
In plain English
A medium-severity cross-site scripting in Class and Exam Timetabling System from SourceCodester. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Official description
A weakness has been identified in SourceCodester Class and Exam Timetabling System 1.0. Affected is an unknown function of the file /BSIS1.php. Executing a manipulation of the argument course can lead to cross site scripting. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SourceCodester | Class and Exam Timetabling System | 1.0 |
Weakness: CWE-79, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
References
- VDB-394295 | SourceCodester Class and Exam Timetabling System BSIS1.php cross site scripting vdb-entry, technical-description
- VDB-394295 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-78054 | CVE Analysis and Report third-party-advisory
- Submit #881417 | itsourcecode Class and Exam Timetabling System Project V1.0 V1.0 XSS third-party-advisory
- https://github.com/i-QvQ-i/first-OvO/issues/10 exploit, issue-tracking
- https://www.sourcecodester.com/ product