Quick Page/Post Redirect Plugin <= 5.1.9 - Redirect Security Bypass
Strategic Overview
- Status
- Patched in 5.2.0
- Affected Plugin
- Quick Page/Post Redirect Plugin
- Affected Version
<= 5.1.9- CVSS
- 4.3Medium
- Weakness type
- CWE-284 · Improper Access Control
- CVE
CVE-2020-36699
At a glance
CVE-2020-36699 is a medium-severity Improper Access Control vulnerability in the Quick Page/Post Redirect Plugin WordPress plugin, affecting versions <= 5.1.9. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The issue is fixed in version 5.2.0; sites on affected versions should update now. Disclosed April 2020, reported by Jerome Bruandet.
Vulnerability Overview
The Quick Page/Post Redirect Plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on the qppr_save_quick_redirect_ajax and qppr_delete_quick_redirect functions in versions up to, and including, 5.1.9. This makes it possible for low-privileged attackers to interact with the plugin settings and to create a redirect link that would forward all traffic to an external malicious website.
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-284: Improper Access Control
Reaching this weakness in Quick Page/Post Redirect Plugin <= 5.1.9 takes a caller who can reach the endpoint. Improper access control means the code decides what a caller may do using something other than their actual permissions, so the decision can be wrong without any check appearing to be missing.
Whoever can shape the request decides the answer, so the protected action runs for callers the code never meant to allow. For Quick Page/Post Redirect Plugin the fix is 5.2.0: builds <= 5.1.9 are affected, anything from 5.2.0 onward is not.
Remediation
Update to version 5.2.0, 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: Quick Page/Post Redirect Plugin 5.2.0 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Quick Page/Post Redirect Plugin
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C