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CVE-2026-29048
March 06, 2026
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.
Affected Packages
https://github.com/humhub/humhub.git (GITHUB):
Affected version(s) =v1.18.0 <v1.18.1
Fix Suggestion:
Update to version v1.18.1
https://github.com/humhub/humhub.git (GITHUB):
Affected version(s) >=v1.17.0 <v1.17.6
Fix Suggestion:
Update to version v1.17.6
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.03