{"id":"CVE-2026-113683","published":"2026-10-20T16:17:13.360","lastModified":"2026-10-23T02:16:56.707","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.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/blob/V4.5.0/similarity/diff.class.php#L412-L419","tags":[]},{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/commit/5dd7fe00df2816b692f8ea262c6fa8cdee0b26b7","tags":[]},{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/releases/tag/V5.0.0","tags":[]},{"url":"https://www.vulncheck.com/advisories/vpl-for-moodle-before-5.0.0-reflected-xss-via-similarity-diff-php-filename","tags":[]}],"exploitRefs":[{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/blob/V4.5.0/similarity/diff.class.php#L412-L419","tags":[]},{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/commit/5dd7fe00df2816b692f8ea262c6fa8cdee0b26b7","tags":[]},{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/releases/tag/V5.0.0","tags":[]}],"hasPoc":true,"ai":null}