What is CVE-2021-32925?

CVE-2021-32925 is a medium-severity vulnerability in Chamilo, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2021-05-13.

How severe is CVE-2021-32925?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XXE in Chamilo

CVE-2021-32925

admin/user_import.php in Chamilo 1.11.x reads XML data without disabling the ability to load external entities.

Vulnerability class: XXE (XML External Entity)

Published 2021-05-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.0th percentile), scored 2026-10-04.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Chamilo

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

github.com/chamilo/chamilo-lms/commit/e71437c8de809044ba3ae1b181d70857c050a3e9 (Patch, Third Party Advisory)
www.php.net/manual/en/function.libxml-disable-entity-loader.php (Third Party Advisory)
github.com/andrejspuler/writeups/blob/main/chamilo-lms/README.md (Exploit, Third Party Advisory, Mitigation)
support.chamilo.org/projects/1/wiki/Security_issues (Third Party Advisory)

Frequently asked questions

What is CVE-2021-32925?: CVE-2021-32925 is a medium-severity vulnerability in Chamilo, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2021-05-13.
How severe is CVE-2021-32925?: Medium severity. CVSS v3 base score is 6.5 out of 10.