Meta Box < 5.13.1 — Authenticated (Contributor+) Insecure Direct Object Reference
CVE-2026-15248Published · Updated Action summary
Affected: <5.13.1Update to 5.13.1 or newer
All remediation steps- Severity
- Medium4.3
- CVSS
- 4.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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:LIntegrity- Low
A:NAvailability- None
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Meta Box – A Framework for Dynamic Websites meta-box
- Affected< 5.13.1
- Patched in5.13.1
Update to 5.13.1 or newer.
You are affected if you run < 5.13.1. Version 5.13.1 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Meta Box – A Framework for Dynamic Websites.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 5.13.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Meta Box – A Framework for Dynamic Websites to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Simon Tran.
The Meta Box plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to 5.13.1 due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with contributor-level access and above, to perform an unauthorized action.
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 Meta Box – A Framework for Dynamic Websites
All 12| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤5.15.3Update to 5.15.4 | CVE-2026-123472 | |
| Medium4.3 | Missing Authorization ≤5.15.3Update to 5.15.4 | CVE-2026-120836 | |
| Medium4.9 | Authenticated (Subscriber+) Stored Cross-Site Scripting via Background Field Array Keys ≤5.15.2Update to 5.15.3 | CVE-2026-109216 | |
| Medium4.3 | Missing Authorization ≤5.15.2Update to 5.15.3 | CVE-2026-109700 | |
| High8.1 | Authenticated (Contributor+) Arbitrary File Deletion ≤5.11.1Update to 5.11.2 | CVE-2026-39468 |
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤5.15.3Update to 5.15.4
- Medium4.3Missing Authorization
≤5.15.3Update to 5.15.4
- Medium4.9Authenticated (Subscriber+) Stored Cross-Site Scripting via Background Field Array Keys
≤5.15.2Update to 5.15.3
- Medium4.3Missing Authorization
≤5.15.2Update to 5.15.3
- High8.1Authenticated (Contributor+) Arbitrary File Deletion
≤5.11.1Update to 5.11.2
Timeline
CVE published
Severity medium, CVSS 4.3
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.