{"id":"CVE-2026-113683","aliases":["EUVD-2026-105099","GHSA-2929-5xr7-ghmp"],"status":"published","title":"VPL for Moodle before 5.0.0 Reflected XSS via similarity/diff.php filename","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.","severity":{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00358,"percentile":0.29962,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-10-20T15:40:43Z","modified":"2026-10-28T02:30:51Z","products":[{"vendor":"jcrodriguez-dis","product":"moodle-mod_vpl"}],"references":[{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/commit/5dd7fe00df2816b692f8ea262c6fa8cdee0b26b7","tags":["patch","fix"]},{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/releases/tag/V5.0.0","tags":["release-notes","advisory"]},{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl/blob/V4.5.0/similarity/diff.class.php#L412-L419","tags":["technical-description","article"]},{"url":"https://www.vulncheck.com/advisories/vpl-for-moodle-before-5.0.0-reflected-xss-via-similarity-diff-php-filename","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113683","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2929-5xr7-ghmp"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113683.json","tags":["advisory"]},{"url":"https://github.com/jcrodriguez-dis/moodle-mod_vpl","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-113683","title":"VPL for Moodle before 5.0.0 Reflected XSS via similarity/diff.php filename","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.","status":"published","published":"2026-10-20T15:40:43.19Z","modified":"2026-10-23T01:48:46.789Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:44:29.519518Z"}],"euvd":[{"id":"EUVD-2026-105099","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.","status":"published","published":"2026-10-20T15:40:43Z","modified":"2026-10-23T01:48:46Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:59:33.524592Z"}],"ghsa":[{"id":"GHSA-2929-5xr7-ghmp","title":"VPL (Virtual Programming Lab) for Moodle before 5.0.0 contains a reflected cross-site scripting...","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.","status":"published","published":"2026-10-20T18:31:46Z","modified":"2026-10-20T18:31:50Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:14:04.153849Z"}],"nvd":[{"id":"CVE-2026-113683","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.","status":"published","published":"2026-10-20T16:17:13.36Z","modified":"2026-10-23T02:16:56.707Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:13:01.161484Z"}],"osv":[{"id":"CVE-2026-113683","title":"VPL for Moodle before 5.0.0 Reflected XSS via similarity/diff.php filename","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.","status":"published","published":"2026-10-20T15:40:43.19Z","modified":"2026-10-28T02:30:51.287551747Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:56.310988Z"}]}}