EUVD-2026-11751CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
4Description
wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability that allows attackers to inject malicious code through unescaped attachment URLs in HTML output by exploiting the WpdiscuzHelperUpload class. Attackers can craft malicious attachment records or filter hooks to inject arbitrary JavaScript into img and anchor tag attributes, executing code in the context of WordPress users viewing comments.
Analysis
wpDiscuz before version 7.6.47 contains a stored cross-site scripting (XSS) vulnerability in the WpdiscuzHelperUpload class that fails to properly escape attachment URLs when rendering HTML output. Attackers with limited privileges (contributor level or higher) can inject malicious JavaScript through crafted attachment records or WordPress filter hooks, which executes in the browsers of any WordPress user viewing the affected comments. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.
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External POC / Exploit Code
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