Post Meta Data Manager <= 1.4.4 - Authentciated (Admin+) Multisite Privilege Escalation
Strategic Overview
- Status
- Unpatched
- Affected Plugin
- Post Meta Data Manager
- Affected Version
<= 1.4.4- CVSS
- 7.2High
- Weakness type
- CWE-269 · Improper Privilege Management
- CVE
CVE-2024-13835
At a glance
CVE-2024-13835 is a high-severity Improper Privilege Management vulnerability in the Post Meta Data Manager WordPress plugin, affecting versions <= 1.4.4. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). No fixed release has been reported yet; treat installations running this software as exposed. Disclosed March 2025, reported by Francesco Carlucci.
Vulnerability Overview
The Post Meta Data Manager plugin for WordPress is vulnerable to multisite privilege escalation in all versions up to, and including, 1.4.4. This is due to the plugin not properly verifying the existence of a multisite installation prior to allowing user meta to be added/modified. This makes it possible for authenticated attackers, with Administrator-level access and above, to gain elevated privileges on subsites that would otherwise be inaccessible.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-269: Improper Privilege Management
Reaching this weakness in Post Meta Data Manager <= 1.4.4 takes a caller who can reach the endpoint. Improper privilege management means the code lets an account end up with capabilities its role should not have.
It converts a low-privileged account into an administrative one, which makes every other restriction on the site irrelevant. No fixed build of this plugin is recorded for Post Meta Data Manager yet, so installs running <= 1.4.4 stay exposed until the vendor ships one.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Post Meta Data Manager
- 8.8CVE-2023-5425: Post Meta Data Manager Authenticated (Subscriber+)
CVE-2023-5425 - 7.5CVE-2023-5426: Post Meta Data… User, Term, and Post Meta Deletion
CVE-2023-5426 - 6.4CVE-2024-6264: Post Meta Data Manager <= 1.2.3 Stored XSS
CVE-2024-6264 - 5.3Post Meta Data Manager <= 1.2.0 Post, Term, and User Meta Deletion
- 4.3CVE-2023-5776: Post Meta Data Manager CSRF
CVE-2023-5776
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