What’s Vulnerable › Vulnerabilities

CVE-2025-13401: Autoptimize <= 3.1.13 - Authenticated (Contributor+) Stored Cross-Site Scripting

• Severity: medium (CVSS 6.4 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: 2025-12-03 · updated 2026-10-18
• Weakness: CWE-79

Description

The Autoptimize plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the LCP Image to preload metabox in all versions up to, and including, 3.1.13 due to insufficient input sanitization and output escaping on user-supplied image attributes in the "create_img_preload_tag" function. This makes it possible for authenticated attackers, with contributor level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• optimizingmatters Autoptimize: through 3.1.13

References

• https://plugins.trac.wordpress.org/changeset/3401333/autoptimize
• https://www.wordfence.com/threat-intel/vulnerabilities/id/6ed5bdb3-c4cd-4982-bc47-feeff527e284?source=cve

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