CVE-2026-29048 MEDIUM

CVE-2026-29048: HumHub: XSS in Button component

Vendor Humhub
Product humhub
Weakness CWE-79 · XSS
Published March 6, 2026
Last update March 9, 2026

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

HumHub is an Open Source Enterprise Social Network. In version 1.18.0, a cross-site scripting vulnerability was identified in the Button component of version 1.18.0. Due to inconsistent output encoding at several points within the software, malicious scripts could be injected and executed in the context of the user's browser. This issue has been patched in version 1.18.1.

Key dates

02Disclosure timeline

March 6, 2026 CVE published
March 9, 2026 Record updated