Description
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.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/humhub/calendar/security/advisories/GHSA-gqj3-pmp2-mrx8
Release Notes x_refsource_misc
https://github.com/humhub/calendar/releases/tag/v1.8.11
Scores
CVSS v3
6.1
EPSS
0.0015
EPSS Percentile
4.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (1)
humhub/calendar
< 1.8.11
Published
Mar 05, 2026
Tracked Since
Mar 05, 2026