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.
Metrics
Affected Vendors & Products
References
History
Thu, 23 Jul 2026 21:45:00 +0000
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Brainstormforce
Brainstormforce spectra Legacy – Gutenberg Blocks Wordpress Wordpress wordpress |
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| Vendors & Products |
Brainstormforce
Brainstormforce spectra Legacy – Gutenberg Blocks Wordpress Wordpress wordpress |
Wed, 22 Jul 2026 14:30:00 +0000
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ssvc
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Mon, 20 Jul 2026 22:00:00 +0000
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| 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. | |
| Title | Spectra Gutenberg Blocks <= 2.19.28 - Authenticated (Contributor+) Stored Cross-Site Scripting via uagb/image Block | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published: 2026-07-20T21:29:56.373Z
Updated: 2026-07-22T13:50:55.500Z
Reserved: 2026-06-22T13:52:57.092Z
Link: CVE-2026-12900
Updated: 2026-07-22T13:50:51.060Z
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