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CVE-2024-3987: WP Mobile Menu – The Mobile-Friendly Responsive Menu <= 2.8.4.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Image Alt

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-07 · updated 2026-06-17
• Weakness: CWE-79

Description

The WP Mobile Menu – The Mobile-Friendly Responsive Menu plugin for WordPress is vulnerable to Stored Cross-Site Scripting via image alt text in all versions up to, and including, 2.8.4.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• takanakui WP Mobile Menu – The Mobile-Friendly Responsive Menu: before 2.8.4.3 — fixed in 2.8.4.3

How to fix

Upgrade to a fixed version: takanakui WP Mobile Menu – The Mobile-Friendly Responsive Menu 2.8.4.3. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset/3097563/mobile-menu/trunk/includes/class-wp-mobile-menu-core.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/7bcbc6b6-ed05-4709-bf05-214418798339?source=cve
• https://plugins.trac.wordpress.org/changeset/3097563/mobile-menu/trunk/includes/class-wp-mobile-menu-core.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/7bcbc6b6-ed05-4709-bf05-214418798339?source=cve

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