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CVE-2026-31940

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicc_hacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b171a46b9ba18cc371be2ebb8fff512b760416dabf9727ecf05917a8440f248d
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"chamilo-lms","vendor":"chamilo","versions":[{"status":"affected","version":"< 1.11.38"},{"status":"affected","version":">= 2.0.0-alpha.1, < 2.0.0-RC.3"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:225930426e0b8adc2d5b4c405812d3ab2b3244dc8fbbd56b5c20489b9fc16cd2 · sha256:04bd573ddb546094… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:225930426e0b8adc2d5b4c405812d3ab2b3244dc8fbbd56b5c20489b9fc16cd2 · sha256:04bd573ddb546094… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-384","description":"CWE-384: Session Fixation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:225930426e0b8adc2d5b4c405812d3ab2b3244dc8fbbd56b5c20489b9fc16cd2 · sha256:04bd573ddb546094… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9","tags":["x_refsource_MISC"],"url":"https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:225930426e0b8adc2d5b4c405812d3ab2b3244dc8fbbd56b5c20489b9fc16cd2 · sha256:04bd573ddb546094… · /containers/cna/references/1
{"name":"https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869","tags":["x_refsource_MISC"],"url":"https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:225930426e0b8adc2d5b4c405812d3ab2b3244dc8fbbd56b5c20489b9fc16cd2 · sha256:04bd573ddb546094… · /containers/cna/references/2
{"name":"https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gv"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:225930426e0b8adc2d5b4c405812d3ab2b3244dc8fbbd56b5c20489b9fc16cd2 · sha256:04bd573ddb546094… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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