CVE-2021-26746

Name: CVE-2021-26746
Creator: NVD / NIST
Published: 2021-02-19T05:15:19.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.04%

Last modified Jun 17, 2026

CVE-2021-26746 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Chamilo 1.11.14 allows XSS via a main/calendar/agenda_list.php?type= URI.. EPSS estimates a 1.04% chance of exploitation in the next 30 days.

Description

Chamilo 1.11.14 allows XSS via a main/calendar/agenda_list.php?type= URI.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.04%

59.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Chamilo	Chamilo	1.11.14

References

https://github.com/chamilo/chamilo-lms/commit/d939402d83bf68af5377b629883d8e5437d843ecPatch, Third Party Advisory
https://support.chamilo.org/projects/chamilo-18/wiki/Security_issues#Issue-45-2021-01-21-Moderate-impact-moderate-risk-XSS-vulnerability-in-agendaVendor Advisory
https://www.netsparker.com/web-applications-advisories/ns-21-001-cross-site-scripting-in-chamilo-lms/Third Party Advisory
https://github.com/chamilo/chamilo-lms/commit/d939402d83bf68af5377b629883d8e5437d843ecPatch, Third Party Advisory
https://support.chamilo.org/projects/chamilo-18/wiki/Security_issues#Issue-45-2021-01-21-Moderate-impact-moderate-risk-XSS-vulnerability-in-agendaVendor Advisory
https://www.netsparker.com/web-applications-advisories/ns-21-001-cross-site-scripting-in-chamilo-lms/Third Party Advisory

Timeline

Published: Feb 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-26746?

Chamilo 1.11.14 allows XSS via a main/calendar/agenda_list.php?type= URI.

How severe is CVE-2021-26746?

CVE-2021-26746 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.04% probability of exploitation in the next 30 days.

How do I fix CVE-2021-26746?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-26746?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST