CVE-2026-4248 Details
Description
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.
A vulnerability allowing sensitive information exposure has been identified in the Ultimate Member plugin for WordPress, affecting all versions through 2.11.2. The issue arises because the '{usermeta:password_reset_link}' template tag is processed within post content via the '[um_loggedin]' shortcode. This generates a valid password reset token for the currently logged-in user. Authenticated attackers with Contributor-level access or higher can create a malicious pending post that, when previewed by an Administrator, generates a password reset token for the Administrator. This token can then be exfiltrated to an attacker-controlled server, leading to full account takeover.
Users are advised to update the Ultimate Member plugin to version 2.11.3 or a newer patched version.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Mar 27, 2026CISA-ADP
Assessed Apr 1, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-285 | Improper Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Ultimate Member | <= 2.11.2 (semver) |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 27, 2026 | New CVE Received | [email protected] |