CVE-2023-5426

Name: CVE-2023-5426
Creator: NVD / NIST
Published: 2023-10-28T12:15:38.08+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2023-5426 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The Post Meta Data Manager plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the pmdm_wp_delete_user_meta, pmdm_wp_delete_term_meta, and pmdm_wp_ajax_delete_meta functions in versions up to, and including, 1.2.0. This makes it possible for unauthenticated attackers to delete user, term, and post meta belonging to arbitrary users.. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

The Post Meta Data Manager plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the pmdm_wp_delete_user_meta, pmdm_wp_delete_term_meta, and pmdm_wp_ajax_delete_meta functions in versions up to, and including, 1.2.0. This makes it possible for unauthenticated attackers to delete user, term, and post meta belonging to arbitrary users.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

0.47%

37.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Wpexpertplugins	Post Meta Data Manager	< 1.2.1

References

https://plugins.trac.wordpress.org/changeset/2981559/post-meta-data-managerPatch
https://www.wordfence.com/threat-intel/vulnerabilities/id/d6a7f882-4582-4b08-9597-329d140ad782?source=cvePatch, Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2981559/post-meta-data-managerPatch
https://www.wordfence.com/threat-intel/vulnerabilities/id/d6a7f882-4582-4b08-9597-329d140ad782?source=cvePatch, Third Party Advisory

Timeline

Published: Oct 28, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5426?

How severe is CVE-2023-5426?

CVE-2023-5426 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5426?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-5426?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST