Spectra Gutenberg Blocks <= 2.19.25 — Authenticated (Contributor+) Remote Code Execution via Arbitrary PHP Function Call via Block Attributes
CVE-2026-7465Published · Updated Action summary
Affected: ≤2.19.25Update to 2.19.26 or newer
All remediation steps- Severity
- High8.8
- CVSS
- 8.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-269 Privilege Escalation
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Spectra Legacy – Gutenberg Blocks ultimate-addons-for-gutenberg
- Affected≤ 2.19.25
- Patched in2.19.26
Update to 2.19.26 or newer.
You are affected if you run ≤ 2.19.25. Version 2.19.26 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Spectra Legacy – Gutenberg Blocks.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 2.19.26, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Spectra Legacy – Gutenberg Blocks to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to kai63001.
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Spectra Legacy – Gutenberg Blocks
All 33| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤2.20.4Update to 2.20.5 | CVE-2026-119520 | |
| Medium6.5 | Missing Authorization to Unauthenticated Limited Theme File Deletion and Modification via 'page', 'path', and 'settings' GET Parameters ≤2.20.4Update to 2.20.5 | CVE-2026-92294 | |
| Medium4.3 | Authenticated (Contributor+) Sensitive Information Exposure ≤2.20.0Update to 2.20.1 | CVE-2026-16302 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via uagb/image Block ≤2.19.28Update to 2.19.29 | CVE-2026-12900 | |
| Medium4.3 | Authenticated (Contributor+) CSS Injection <2.20.0Update to 2.20.0 | CVE-2026-10827 |
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤2.20.4Update to 2.20.5
- Medium6.5Missing Authorization to Unauthenticated Limited Theme File Deletion and Modification via 'page', 'path', and 'settings' GET Parameters
≤2.20.4Update to 2.20.5
- Medium4.3Authenticated (Contributor+) Sensitive Information Exposure
≤2.20.0Update to 2.20.1
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via uagb/image Block
≤2.19.28Update to 2.19.29
- Medium4.3Authenticated (Contributor+) CSS Injection
<2.20.0Update to 2.20.0
Same weakness (Privilege Escalation)
All Privilege Escalation| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity high, CVSS 8.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.