Summaryinfo

A vulnerability classified as critical was found in ultimatemember Ultimate Member Plugin up to 2.11.2 on WordPress. This vulnerability affects unknown code. The manipulation of the argument usermeta:password_reset_link results in improper authorization. This vulnerability is known as CVE-2026-4248. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in ultimatemember Ultimate Member Plugin up to 2.11.2 on WordPress. Affected is an unknown function. The manipulation of the argument usermeta:password_reset_link with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The Ultimate Member plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.11.2. This is due to the '{usermeta:password_reset_link}' template tag being processed within post content via the '[um_loggedin]' shortcode, which generates a valid password reset token for the currently logged-in user viewing the page. This makes it possible for authenticated attackers, with Contributor-level access and above, to craft a malicious pending post that, when previewed by an Administrator, generates a password reset token for the Administrator and exfiltrates it to an attacker-controlled server, leading to full account takeover.

The weakness was published by HDH. The advisory is shared for download at wordfence.com. This vulnerability is traded as CVE-2026-4248 since 03/16/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/28/2026). The MITRE ATT&CK project declares the attack technique as T1548.002.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-16901). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• WordPress Plugin

Vendor

• ultimatemember

Name

• Ultimate Member Plugin

Version

• 2.11.0
• 2.11.1
• 2.11.2

CPE 2.3info

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CPE 2.2info

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