{"id":"CVE-2026-32893","aliases":["EUVD-2026-21525","GHSA-37jh-g64j-88mc"],"status":"published","title":"Chamilo LMS has Reflected XSS via Unsanitized http_build_query() in Exercise Question List Pagination","description":"Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, a Reflected Cross-Site Scripting (XSS) vulnerability in the exercise question list admin panel allows an attacker to execute arbitrary JavaScript in an authenticated teacher's browser. The pagination code merges all $_GET parameters via array_merge() and outputs the result via http_build_query() directly into HTML href attributes without htmlspecialchars() encoding. This vulnerability is fixed in 2.0.0-RC.3.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00147,"percentile":0.03959,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-04-10T17:42:24Z","modified":"2026-10-28T02:30:43Z","products":[{"vendor":"chamilo","product":"chamilo-lms"},{"vendor":"chamilo","product":"chamilo_lms"}],"references":[{"url":"https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-37jh-g64j-88mc","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory"]},{"url":"https://github.com/chamilo/chamilo-lms/commit/72bc403f89b1ebb73a139f8f6cf0478857592276","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32893.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32893","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-32893","title":"Chamilo LMS has Reflected XSS via Unsanitized http_build_query() in Exercise Question List Pagination","description":"Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, a Reflected Cross-Site Scripting (XSS) vulnerability in the exercise question list admin panel allows an attacker to execute arbitrary JavaScript in an authenticated teacher's browser. The pagination code merges all $_GET parameters via array_merge() and outputs the result via http_build_query() directly into HTML href attributes without htmlspecialchars() encoding. This vulnerability is fixed in 2.0.0-RC.3.","status":"published","published":"2026-04-10T17:42:24.22Z","modified":"2026-04-15T14:51:41.852Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:19:57.100857Z"}],"euvd":[{"id":"EUVD-2026-21525","description":"Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, a Reflected Cross-Site Scripting (XSS) vulnerability in the exercise question list admin panel allows an attacker to execute arbitrary JavaScript in an authenticated teacher's browser. The pagination code merges all $_GET parameters via array_merge() and outputs the result via http_build_query() directly into HTML href attributes without htmlspecialchars() encoding. This vulnerability is fixed in 2.0.0-RC.3.","status":"published","published":"2026-04-10T17:42:24Z","modified":"2026-04-15T14:51:41Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:25.212217Z"}],"nvd":[{"id":"CVE-2026-32893","description":"Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, a Reflected Cross-Site Scripting (XSS) vulnerability in the exercise question list admin panel allows an attacker to execute arbitrary JavaScript in an authenticated teacher's browser. The pagination code merges all $_GET parameters via array_merge() and outputs the result via http_build_query() directly into HTML href attributes without htmlspecialchars() encoding. This vulnerability is fixed in 2.0.0-RC.3.","status":"published","published":"2026-04-10T18:16:41.953Z","modified":"2026-10-26T22:10:00.163Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:14.37744Z"}],"osv":[{"id":"CVE-2026-32893","title":"Chamilo LMS has Reflected XSS via Unsanitized http_build_query() in Exercise Question List Pagination","description":"Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, a Reflected Cross-Site Scripting (XSS) vulnerability in the exercise question list admin panel allows an attacker to execute arbitrary JavaScript in an authenticated teacher's browser. The pagination code merges all $_GET parameters via array_merge() and outputs the result via http_build_query() directly into HTML href attributes without htmlspecialchars() encoding. This vulnerability is fixed in 2.0.0-RC.3.","status":"published","published":"2026-04-10T17:42:24.22Z","modified":"2026-10-28T02:30:43.207292421Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:45:01.548715Z"}]}}