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CVE-2023-5426: 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 pmd

high Affects post-meta-data-manager (WordPress plugin). Feed 2026.10.29.3, updated 2026-10-29; published ; advisory modified .

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 pmd

Package
post-meta-data-manager (WordPress plugin) WordPress
Affected versions
<1.2.1
Fixed in
1.2.1
Severity
high  CVSS 7.5
Exploitation
not on CISA KEV · EPSS 1% (46.6th percentile)
Published
2023-10-28
Source
nvd

References

CWE-862
NVD recordpost-meta-data-manager (WordPress plugin) advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden wordpress /var/www/html

# or, without Composer
pipx install phpwarden   &&   phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

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