Spectra – WordPress Gutenberg Blocks <= 2.3.1 — Captcha Bypass
CVE-2023-23730Published · Updated Action summary
Affected: ≤2.3.1Update to 2.3.2 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-804 Guessable CAPTCHA
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Spectra Legacy – Gutenberg Blocks ultimate-addons-for-gutenberg
- Affected≤ 2.3.1
- Patched in2.3.2
Update to 2.3.2 or newer.
You are affected if you run ≤ 2.3.1. Version 2.3.2 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.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 2.3.2, 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 Dave Jong.
The Spectra – WordPress Gutenberg Blocks plugin for WordPress is vulnerable to CAPTCHA Bypass in versions up to, and including, 2.3.1. This makes it possible for unauthenticated attackers to bypass the Captcha Verification.
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
Timeline
CVE published
Severity medium, CVSS 5.3
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.