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A Stored XSS (CVE-2026-0693) in the "Allow HTML in Category Descriptions" @WordPress plugin.

We verified a Stored XSS (CVE-2026-0693) in the "HTML in Category Descriptions" @WordPress plugin.

The Flaw: The plugin correctly restricts input but unintentionally removes global output filters (wp_kses_data) for all users. The Impact: Malicious scripts in category descriptions execute for any visitor. The Validation: Confirmed via autonomous PoC.

Security requires validating the full data lifecycle, not just lines of code.

Vulnerability details: https://www.cve.org/CVERecord?id=CVE-2026-0693

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