What’s Vulnerable › Vulnerabilities

CVE-2024-3903: Add Custom CSS and JS <= 1.20 - Stored XSS via CSRF

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-05-14 · updated 2026-06-17
• Weakness: CWE-352

Description

The Add Custom CSS and JS WordPress plugin through 1.20 does not have CSRF check in some places, and is missing sanitisation as well as escaping, which could allow attackers to make logged in as author and above add Stored XSS payloads via a CSRF attack

Affected products

• Add Custom CSS and JS: through 1.20

References

• https://wpscan.com/vulnerability/0a0e7bd4-948d-47c9-9219-380bda9f3034/
• https://wpscan.com/vulnerability/0a0e7bd4-948d-47c9-9219-380bda9f3034/

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