SEPTEMBER 19, 2026
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Case File

CVE-2026-18526

HIGH · CVSS 7.4 EPSS 0.34% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-19 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

HumHub Community Edition versions 1.18.4 and 1.18.4-pl1 are susceptible to a stored Cross-Site Scripting (XSS) vulnerability within the oEmbed confirmation rendering process, allowing attackers to inject malicious scripts. This could lead to unauthorized actions on behalf of users, potentially compromising sensitive data and user accounts. Organizations using these versions should prioritize patching to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-18526
Severity
HIGH
CVSS
7.4
EPSS
0.34%

Original NVD Description

HumHub Community Edition 1.18.4 and 1.18.4-pl1 contain a stored Cross-Site Scripting (XSS) vulnerability in the oEmbed confirmation rendering workflow.