PT-2026-78374

CVE-2026-18526

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Published

2026-08-19

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Updated

2026-09-17

Description by

CVSS 4.0
7.4
High
MetricsAV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions HumHub Community Edition versions 1.18.4 and 1.18.4-pl1
Description A stored Cross-Site Scripting (XSS) issue exists in the oEmbed confirmation rendering workflow. XSS is a flaw that allows an attacker to inject malicious scripts into content that is then served to other users.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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