{"id":"CVE-2026-32893","state":"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.","publishedAt":"2026-04-10T17:42:24.220Z","updatedAt":"2026-04-15T14:51:41.852Z","severity":{"score":5.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["chamilo chamilo-lms"],"affected":[{"vendor":"chamilo","product":"chamilo-lms","versions":[{"version":">= 2.0.0-alpha.1, < 2.0.0-RC.3","status":"affected"}]}],"references":["https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-37jh-g64j-88mc","https://github.com/chamilo/chamilo-lms/commit/72bc403f89b1ebb73a139f8f6cf0478857592276"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/32xxx/CVE-2026-32893.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-32893","state":"PUBLISHED","datePublished":"2026-04-10T17:42:24.220Z","dateUpdated":"2026-04-15T14:51:41.852Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-16T21:03:44.422Z"},"containers":{"cna":{"title":"Chamilo LMS has Reflected XSS via Unsanitized http_build_query() in Exercise Question List Pagination","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"chamilo","product":"chamilo-lms","versions":[{"version":">= 2.0.0-alpha.1, < 2.0.0-RC.3","status":"affected"}]}],"references":[{"url":"https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-37jh-g64j-88mc","name":"https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-37jh-g64j-88mc","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/chamilo/chamilo-lms/commit/72bc403f89b1ebb73a139f8f6cf0478857592276","name":"https://github.com/chamilo/chamilo-lms/commit/72bc403f89b1ebb73a139f8f6cf0478857592276","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-10T17:42:24.220Z"},"source":{"advisory":"GHSA-37jh-g64j-88mc","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-15T14:50:51.197029Z","id":"CVE-2026-32893","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-15T14:51:41.852Z"}}]}}}