Description

The Single-user-chat plugin for WordPress is vulnerable to unauthorized modification of data that can lead to a denial of service due to insufficient validation on the 'single_user_chat_update_login' function in all versions up to, and including, 0.5. This makes it possible for authenticated attackers, with subscriber-level access and above, to update option values to 'login' on the WordPress site. This may be leveraged to update an option that would create an error on the site and deny service to legitimate users or be used to set some values to true such as registration.

Classification

CVE ID: CVE-2024-13646

CVSS Base Severity: HIGH

CVSS Base Score: 8.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected Products

Vendor: aakashbhagat23

Product: Single-user-chat

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 18.88% (scored less or equal to compared to others)

EPSS Date: 2025-02-28 (when was this score calculated)

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/8a4978c1-087f-4784-9691-91ca5044f60a?source=cve
https://plugins.trac.wordpress.org/browser/single-user-chat/trunk/single-user-chat.php#L326

Timeline