How severe is CVE-2025-52476?

CVE-2025-52476 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-52476 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-52476?

CVE-2025-52476 affects Chamilo Chamilo Lms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-52476?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-52476 have an EU (EUVD) identifier?

Yes. CVE-2025-52476 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208177.

When was CVE-2025-52476 published?

CVE-2025-52476 was published on 2026-03-02 and last updated on 2026-06-17.

CVE-2025-52476

CVE-2025-52476 is a medium-severity vulnerability in Chamilo Chamilo Lms with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 5.1
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-208177
Weakness: CWE-79
Affected product: Chamilo Chamilo Lms
Published: 2026-03-02
Last modified: 2026-06-17

Description

Chamilo is a learning management system. Prior to version 1.11.30, there is a reflected cross-site scripting (XSS) vulnerability due to improper sanitization of the keyword_active parameter in admin/user_list.php. This issue has been patched in version 1.11.30.

Frequently asked questions

What is CVE-2025-52476?: Chamilo is a learning management system. Prior to version 1.11.30, there is a reflected cross-site scripting (XSS) vulnerability due to improper sanitization of the keyword_active parameter in admin/user_list.php. This issue has been patched in version 1.11.30.
How severe is CVE-2025-52476?: CVE-2025-52476 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-52476 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-52476?: CVE-2025-52476 affects Chamilo Chamilo Lms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-52476?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-52476 have an EU (EUVD) identifier?: Yes. CVE-2025-52476 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208177.
When was CVE-2025-52476 published?: CVE-2025-52476 was published on 2026-03-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*

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