PostX — Gutenberg Blocks for Post Grid <= 2.4.9 - Unauthorized Access Controls
CVE-2021-24652Published · Updated Action summary
Affected: <2.4.10Update to 2.4.10 or newer
All remediation steps- Severity
- Medium6.5
- CVSS
- 6.5CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:HIntegrity- High
A:NAvailability- None
- Weakness
- CWE-863 Incorrect Authorization
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Post Grid Gutenberg Blocks – PostX ultimate-post
- Affected< 2.4.10
- Patched in2.4.10
Update to 2.4.10 or newer.
You are affected if you run < 2.4.10. Version 2.4.10 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Post Grid Gutenberg Blocks – PostX.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 2.4.10, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Post Grid Gutenberg Blocks – PostX to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to apple502j.
The PostX – Gutenberg Blocks for Post Grid WordPress plugin before 2.4.10 performs incorrect checks before allowing any logged in user to perform some ajax based requests, allowing any user to modify, delete or add ultp_options values.
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 Post Grid Gutenberg Blocks – PostX
All 29| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via display_name User Field ≤5.1.0Update to 5.1.1 | CVE-2026-96840 | |
| Medium5.3 | Unauthenticated Information Exposure ≤5.0.40Update to 5.0.41 | CVE-2026-86783 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via Post Comments Block ≤5.0.13Update to 5.0.14 | CVE-2026-5158 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via 'searchnoresult' Block Attribute ≤5.0.32Update to 5.0.33 | CVE-2026-15100 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via 'moreResultsText' Block Attribute ≤5.0.31Update to 5.0.32 | CVE-2026-13253 |
- High7.2Unauthenticated Stored Cross-Site Scripting via display_name User Field
≤5.1.0Update to 5.1.1
- Medium5.3Unauthenticated Information Exposure
≤5.0.40Update to 5.0.41
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via Post Comments Block
≤5.0.13Update to 5.0.14
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'searchnoresult' Block Attribute
≤5.0.32Update to 5.0.33
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'moreResultsText' Block Attribute
≤5.0.31Update to 5.0.32
Timeline
CVE published
Severity medium, CVSS 6.5
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. 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.