Security Advisory

CVE-2026-12900

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-20 21:29:56

Last updated 2026-07-22 13:50:55

Assigner Wordfence

CVSS score 6.4

State PUBLISHED

Description

The Spectra Gutenberg Blocks – Website Builder for the Block Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `uagb/image` block in all versions up to, and including, 2.19.28 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.

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