What’s Vulnerable › Vulnerabilities

CVE-2026-4032: CodeColorer <= 0.10.1 - Unauthenticated Stored Cross-Site Scripting via 'class' attribute in 'cc' Comment Shortcode

• Severity: medium (CVSS 6.1 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: none known
• Published: 2026-04-16 · updated 2026-06-17
• Weakness: CWE-79

Description

The CodeColorer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'class' parameter in 'cc' comment shortcode in versions up to, and including, 0.10.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires comments to be enabled on the target post and guest comments to be allowed.

Affected products

• kpumuk CodeColorer: through 0.10.1

References

• https://plugins.trac.wordpress.org/changeset/3481552/codecolorer
• https://www.wordfence.com/threat-intel/vulnerabilities/id/44fd7e13-f48a-43c6-a735-15036aa03005?source=cve

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