CVE-2026-92294: Spectra Gutenberg Blocks <= 2.20.4 - Missing Authorization to Unauthenticated Limited Theme File Deletion and Modification via 'page', 'path', and 'settings' GET Parameters

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-31 · updated 2026-10-31
Weakness: CWE-862

Description

The Spectra Gutenberg Blocks – Website Builder for the Block Editor plugin for WordPress is vulnerable to limited file deletion due to insufficient file path validation in the '__construct' function in all versions up to, and including, 2.20.4 This makes it possible for unauthenticated attackers to delete theme files on the server.

Affected products

brainstormforce Spectra Legacy – Gutenberg Blocks: through 2.20.4

References

https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/tags/2.19.21/classes/class-uagb-fse-fonts-compatibility.php#L101
https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/tags/2.19.21/classes/class-uagb-fse-fonts-compatibility.php#L584
https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/tags/2.19.21/classes/class-uagb-fse-fonts-compatibility.php#L93
https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/tags/2.19.21/classes/class-uagb-loader.php#L302
https://plugins.trac.wordpress.org/changeset/3736176/
https://www.wordfence.com/threat-intel/vulnerabilities/id/60ad515a-3c0b-47f5-919b-0d17f693c049?source=cve

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