What’s Vulnerable › Vulnerabilities

CVE-2021-34652: Media Usage <= 0.0.4 Reflected Cross-Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-16 · updated 2026-06-17
• Weakness: CWE-79

Description

The Media Usage WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the id parameter in the ~/mmu_admin.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.0.4.

Affected products

• Media Usage: through 0.0.4

References

• https://plugins.trac.wordpress.org/browser/media-usage/trunk/mmu_admin.php#L91
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34652
• https://plugins.trac.wordpress.org/browser/media-usage/trunk/mmu_admin.php#L91
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34652

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