EUVD-2025-18636Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
AV:N, AC:L, PR:L (contributor), UI:R, S:C, C:L/I:L/A:L
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Meks Meks Flexible Shortcodes allows DOM-Based XSS. This issue affects Meks Flexible Shortcodes: from n/a through 1.3.7.
AnalysisAI
DOM-based cross-site scripting vulnerability in Meks Flexible Shortcodes WordPress plugin up to version 1.3.7 allows authenticated attackers with contributor-level access or higher to inject arbitrary web scripts via crafted shortcodes. The vulnerability is triggered when a user interacts with a malicious link, leading to script execution in the victim's browser. No public exploit or active exploitation has been reported, and the EPSS score is low (0.05%).
Technical ContextAI
The vulnerability is a DOM-based Cross-Site Scripting (XSS) classified under CWE-79. It resides in the Meks Flexible Shortcodes plugin for WordPress, which provides custom shortcodes for content formatting. The issue stems from improper neutralization of user input during web page generation, allowing attackers to inject malicious scripts that execute in the DOM environment. The CVSS vector indicates a network attack vector with low complexity, but requires low privileges (contributor-level) and user interaction. The affected product is identified via CPE as a WordPress plugin, with versions through 1.3.7 impacted.
RemediationAI
Update the Meks Flexible Shortcodes plugin to version 1.3.8 or later, which contains the fix. The vendor advisory from Patchstack confirms the patched version. As a workaround, restrict contributor-level access to trusted users only, and consider using a web application firewall (WAF) to filter XSS payloads. Note that disabling the plugin entirely would remove shortcode 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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