CVE Catalog

CVE-2026-29052

MediumCVSS 6.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.16%

5th percentile - higher than 5% of all known CVEs

Summary

The Calendar module for HumHub before version 1.8.11 contains a Stored Cross-Site Scripting (XSS) vulnerability in Event Types. It impacts users viewing events created by an administrative account. This issue has been patched in version 1.8.11.

Risk Assessment

The risk includes execution of malicious scripts in users' browsers, which could lead to session theft or other XSS attacks.

Recommendation

Update the Calendar module to version 1.8.11 or later, which includes the fix.

Related vulnerabilities

Original NVD description (English source)

The Calendar module for HumHub enables users to create one-time or recurring events, manage attendee invitations, and efficiently track all scheduled activities. Prior to version 1.8.11, a Stored Cross-Site Scripting (XSS) vulnerability in the Event Types of the HumHub Calendar module impacts users viewing events created by an administrative account. This issue has been patched in version 1.8.11.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS