CVE-2017-20026: HumHub Reflected cross site scriting

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-06-09 · updated 2026-06-17
Weakness: CWE-80

Description

A vulnerability has been found in HumHub up to 1.0.1 and classified as problematic. Affected by this vulnerability is an unknown functionality. The manipulation leads to cross site scripting (Reflected). The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.1.1 is able to address this issue. It is recommended to upgrade the affected component.

Affected products

humhub: before 1.1.1 — fixed in 1.1.1

How to fix

Upgrade to a fixed version: humhub 1.1.1. Check the vendor advisory for mitigations.

References

http://seclists.org/fulldisclosure/2017/Mar/47
https://vuldb.com/?id.98923
http://seclists.org/fulldisclosure/2017/Mar/47
https://vuldb.com/?id.98923

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