EUVD-2025-28366Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Requires authenticated contributor, victim interaction, scope change.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in prismtechstudios Modern Footnotes allows Stored XSS. This issue affects Modern Footnotes: from n/a through 1.4.19.
AnalysisAI
Stored cross-site scripting in Modern Footnotes WordPress plugin through 1.4.19 allows authenticated attackers with contributor-level access or higher to inject arbitrary web scripts into footnote content. When an administrator views a page containing the malicious footnote, the script executes in their browser, potentially leading to session hijacking or defacement. No public exploit or active exploitation has been identified.
Technical ContextAI
The vulnerability is a stored cross-site scripting (XSS) flaw in the Modern Footnotes plugin for WordPress, which provides footnote functionality via shortcodes. The plugin fails to sanitize user-supplied input before storing it in the database and later rendering it in web pages. CWE-79 describes improper neutralization of input during web page generation. The CVSS vector indicates a network attack vector with low complexity, but requires authenticated access (PR:L) and user interaction (UI:R) from a victim. The scope is changed (S:C) because the injected script can affect other web resources beyond the vulnerable component.
RemediationAI
Update Modern Footnotes to version 1.4.20 or later, which contains the fix. The vendor advisory from Patchstack confirms the patched version. As a workaround, restrict contributor-level user accounts to trusted individuals only, and consider using a web application firewall (WAF) to filter XSS payloads. Note that disabling the plugin entirely would remove footnote functionality.
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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