CVE-2026-7465
Spectra Gutenberg Blocks <= 2.19.25 - Authenticated (Contributor+) Remote Code Execution via Arbitrary PHP Function Call via Block Attributes
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
Description
The Spectra Gutenberg Blocks – Website Builder for the Block Editor plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.19.25. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server. Exploitation requires a two-block payload embedded in post content: the first block registers a fake uagb/-prefixed block type with an attacker-specified render_callback, and the second block of the same fake type triggers invocation of that callback via call_user_func() during sequential block rendering in the same page request.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.2% · top 32% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
brainstormforce · Spectra Gutenberg Blocks – Website Builder for the Block Editor
- affected ≤ 2.19.25
References (6)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/60013752-d7cf-46e8-84e1-1b614f737b46?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/trunk/classes/class-uagb-init-blocks.php#L335 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/tags/2.19.25/classes/class-uagb-init-blocks.php#L335 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/trunk/classes/class-uagb-init-blocks.php#L330 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/tags/2.19.25/classes/class-uagb-init-blocks.php#L330 (opens in a new tab)
- https://wordpress.org/plugins/ultimate-addons-for-gutenberg/#developers (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-7465)Record last updated .