CVE-2026-113683 VPL for Moodle before 5.0.0 Reflected XSS via similarity/diff.php filename
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-113683?
CVE-2026-113683 is a medium-severity vulnerability in jcrodriguez-dis moodle-mod_vpl, published on 20 Oct 2026.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-113683?
How do I fix CVE-2026-113683?
No fix has been published for CVE-2026-113683 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-113683 being exploited?
There is no known exploitation of CVE-2026-113683 in the wild and no public exploit code.
Sources
Also known as GHSA-2929-5xr7-ghmp.