Vulnerability Description
VPL (Virtual Programming Lab) for Moodle before 5.0.0 contains a reflected cross-site scripting vulnerability that allows remote attackers to inject script via unencoded filename1/filename2 parameters in similarity/diff.php. Attackers can craft a diff.php link with a JavaScript payload that runs when a user holding mod/vpl:similarity opens it, performing actions or disclosing data under their session.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/jcrodriguez-dis/moodle-mod_vpl/blob/V4.5.0/similarity/diff.cl
- https://github.com/jcrodriguez-dis/moodle-mod_vpl/commit/5dd7fe00df2816b692f8ea2
- https://github.com/jcrodriguez-dis/moodle-mod_vpl/releases/tag/V5.0.0
- https://www.vulncheck.com/advisories/vpl-for-moodle-before-5.0.0-reflected-xss-v
FAQ
What is CVE-2026-113683?
CVE-2026-113683 is a vulnerability with a CVSS score of 6.1 (MEDIUM). VPL (Virtual Programming Lab) for Moodle before 5.0.0 contains a reflected cross-site scripting vulnerability that allows remote attackers to inject script via unencoded filename1/filename2 parameters...
How severe is CVE-2026-113683?
CVE-2026-113683 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-113683?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.