WP Remote Users Sync <= 1.2.11 - Missing Authorization to Authenticated (Subscriber+) Log View
Strategic Overview
- Status
- Patched in 1.2.12
- Affected Plugin
- WP Remote Users Sync
- Affected Version
<= 1.2.11- CVSS
- 4.3Medium
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2023-4374
At a glance
CVE-2023-4374 is a medium-severity Missing Authorization vulnerability in the WP Remote Users Sync WordPress plugin, affecting versions <= 1.2.11. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.2.12; sites on affected versions should update now. Disclosed August 2023, reported by István Márton.
Vulnerability Overview
The WP Remote Users Sync plugin for WordPress is vulnerable to unauthorized access of data and addition of data due to a missing capability check on the 'refresh_logs_async' functions in versions up to, and including, 1.2.11. This makes it possible for authenticated attackers with subscriber privileges or above, to view logs.
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.
CWE-862: Missing Authorization
WP Remote Users Sync <= 1.2.11 carries this weakness at refresh_logs_async, and reaching it takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For WP Remote Users Sync the fix is 1.2.12: builds <= 1.2.11 are affected, anything from 1.2.12 onward is not.
Remediation
Update to version 1.2.12, or a newer patched version
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. None of that substitutes for the fix: WP Remote Users Sync 1.2.12 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in WP Remote Users Sync
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