CVE-2021-43847

MEDIUM

HumHub <1.10.3-1.9.3 - Privilege Escalation

Title source: llm
STIX 2.1

Description

HumHub is an open-source social network kit written in PHP. Prior to HumHub version 1.10.3 or 1.9.3, it could be possible for registered users to become unauthorized members of private Spaces. Versions 1.10.3 and 1.9.3 contain a patch for this issue.

References (5)

Core 5
Core References
Exploit, Third Party Advisory x_refsource_confirm
https://github.com/humhub/humhub/security/advisories/GHSA-f5hc-5wfr-7v74
Patch, Third Party Advisory x_refsource_misc
https://github.com/humhub/humhub/pull/5473
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/humhub/humhub/releases/tag/v1.10.3
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/humhub/humhub/releases/tag/v1.9.3
Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://huntr.dev/bounties/943dad83-f0ed-4c74-ba81-7dfce7ca0ef2/

Scores

CVSS v3 6.5
EPSS 0.0033
EPSS Percentile 56.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-862 CWE-285
Status published
Products (1)
humhub/humhub < 1.9.3
Published Dec 20, 2021
Tracked Since Feb 18, 2026