Strategic Overview
- Status
- Patched in 4.4.0
- Affected Plugin
- WP OAuth Server (OAuth Authentication)
- Affected Version
<= 4.3.3- CVSS
- 5.4Medium
- Weakness type
- CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
- CVE
CVE-2024-31253
At a glance
CVE-2024-31253 is a medium-severity URL Redirection to Untrusted Site ('Open Redirect') vulnerability in the WP OAuth Server (OAuth Authentication) WordPress plugin, affecting versions <= 4.3.3. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.4.0; sites on affected versions should update now. Disclosed April 2024, reported by Le Ngoc Anh.
Vulnerability Overview
The WP OAuth Server (OAuth Authentication) plugin for WordPress is vulnerable to Open Redirect in all versions up to, and including, 4.3.3. This is due to insufficient validation on a redirect url. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them into performing an action.
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 privileges on the target site.
CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Reaching this weakness in WP OAuth Server (OAuth Authentication) <= 4.3.3 takes a caller who can reach the endpoint. An open redirect is a page that takes a destination from the request and sends the browser there without checking that the destination belongs to the site.
A link that starts on a trusted domain finishes on an attacker's, which is what makes phishing and consent-screen abuse credible to the person clicking it. For WP OAuth Server (OAuth Authentication) the fix is 4.4.0: builds <= 4.3.3 are affected, anything from 4.4.0 onward is not.
Remediation
Update to version 4.4.0, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to WP OAuth Server (OAuth Authentication): WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP OAuth Server (OAuth Authentication) 4.4.0 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Other vulnerabilities in WP OAuth Server (OAuth Authentication)
- 9.8CVE-2015-9435: WP OAuth Server Pseudorandom Number Generation
CVE-2015-9435 - 8.8CVE-2022-3926: WP OAuth Server (OAuth Authentication) <= 4.2.5 CSRF
CVE-2022-3926 - 6.5CVE-2022-3894: WP OAuth Server CSRF
CVE-2022-3894 - 5.5CVE-2022-3892: WP OAuth Server (OAuth Authentication) Stored XSS
CVE-2022-3892 - 5.4WP OAuth Server (OAuth Authentication) <= 4.2.5 CSRF
- 4.3CVE-2022-4148: WP OAuth Server Arbitrary Client Deletion
CVE-2022-4148
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