{"id":"CVE-2026-113683","title":"VPL for Moodle before 5.0.0 Reflected XSS via similarity/diff.php filename","summary":"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 ca…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"jcrodriguez-dis","product":"moodle-mod_vpl","affected":["moodle-mod_vpl < 5.0.0"],"published":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T15:40:43.190Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113683","references":[{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/commit/5dd7fe00df2816b692f8ea262c6fa8cdee0b26b7"},{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/releases/tag/V5.0.0","label":"VPL V5.0.0 Release Notes"},{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/blob/V4.5.0/similarity/diff.class.php#L412-L419"},{"url":"https://www.vulncheck.com/advisories/vpl-for-moodle-before-5.0.0-reflected-xss-via-similarity-diff-php-filename","label":"VulnCheck Advisory: VPL for Moodle before 5.0.0 Reflected XSS via similarity/diff.php filename"}],"tags":["cve.org"],"ingestedAt":"2026-10-20T16:10:53.296Z","slug":"CVE-2026-113683","body":"## Overview\n\nVPL (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.\n\n## Affected\n\n- `moodle-mod_vpl < 5.0.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}