What is CVE-2026-45145?

CVE-2026-45145 is a high-severity vulnerability in Chamilo Chamilo-Lms, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-10-30.

How severe is CVE-2026-45145?

High severity. CVSS v3 base score is 7.5 out of 10.

Deserialization in Chamilo Chamilo-Lms

CVE-2026-45145

Chamilo LMS is an open-source learning management system. Prior to 2.0.1, `public/main/inc/lib/career.lib.php` and `public/main/cron/import_csv.php` call PHP's native `unserialize()` on `user_career.extra_data` retrieved from the database without the `allowed_classes: false` safety option. An attacker able to write crafted serialized PHP objects to that column, for example through a separate SQL injection, a compromised admin CSV import, or a lower-privilege admin panel, can instantiate arbitrary PHP objects and trigger POP gadget chains in autoloaded `Symfony`, `Doctrine`, or `Monolog` components. This permits arbitrary OS commands as the web server user, compromising server confidentiality, integrity, and availability. This issue is fixed in version 2.0.1.

Vulnerability class: Insecure Deserialization

Published 2026-10-30 · last modified 2026-10-30.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Chamilo Chamilo-Lms — versions < 2.0.1

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

Frequently asked questions

What is CVE-2026-45145?: CVE-2026-45145 is a high-severity vulnerability in Chamilo Chamilo-Lms, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-10-30.
How severe is CVE-2026-45145?: High severity. CVSS v3 base score is 7.5 out of 10.