RCE in Sourcecodester Class And Exam Timetabling System
CVE-2026-78055
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (38.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.001
Affected products
- Sourcecodester Class And Exam Timetabling System — versions 1.0
Weakness classification (CWE)
References
- vuldb.com/vuln/394296 (technical-description, vdb-entry)
- vuldb.com/vuln/394296/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-78055 (third-party-advisory)
- vuldb.com/submit/881430 (third-party-advisory)
- github.com/i-QvQ-i/first-OvO/issues/11 (issue-tracking, exploit)
- www.sourcecodester.com/ (product)
Frequently asked questions
- What is CVE-2026-78055?
- CVE-2026-78055 is a medium-severity vulnerability in Sourcecodester Class And Exam Timetabling System, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-08-23.
- How severe is CVE-2026-78055?
- Medium severity. CVSS v3 base score is 4.3 out of 10.