CVE-2025-64354 — Gutenberg [gutenberg] < 21.9.0

CVE	Vulnerability	Type	Severity	Affected	Fixed in	Published	Status
CVE-2025-64354	Gutenberg [gutenberg] < 21.9.0	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	Medium 6.5	< 21.9.0	21.9.0	2025-10-25	—

CVE-2025-64354

The Gutenberg plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 21.8.2 due to insufficient input sanitization and output escaping. 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.

Source: Wordfence

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