How severe is CVE-2023-5426?

CVE-2023-5426 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-5426 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5426?

CVE-2023-5426 affects Wpexpertplugins Post Meta Data Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5426?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-5426 published?

CVE-2023-5426 was published on 2023-10-28 and last updated on 2026-06-17.

CVE-2023-5426

CVE-2023-5426 is a high-severity vulnerability in Wpexpertplugins Post Meta Data Manager with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Wpexpertplugins Post Meta Data Manager
Published: 2023-10-28
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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 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.
How severe is CVE-2023-5426?: CVE-2023-5426 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-5426 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5426?: CVE-2023-5426 affects Wpexpertplugins Post Meta Data Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5426?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-5426 published?: CVE-2023-5426 was published on 2023-10-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wpexpertplugins:post_meta_data_manager:*:*:*:*:*:wordpress:*:*

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