Description

WordPress Plugin Clerk is prone to a security bypass vulnerability. Exploiting this issue may allow attackers to perform time-based attacks in the validation function for all API requests due to the usage of comparison operators to verify API keys against the ones stored in the site options. WordPress Plugin Clerk version 3.8.3 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 4.0.0 or latest

References

https://sploitus.com/exploit?id=WPEX-ID:7920C1C1-709D-4B1F-AC08-F0A02DDB329C

https://plugins.svn.wordpress.org/clerkio/trunk/readme.txt

Related Vulnerabilities

WordPress Plugin Ultimate Member-User Profile, Registration, Login, Member Directory, Content Restriction & Membership Privilege Escalation (2.6.6)

WordPress Plugin Filedownload Multiple Vulnerabilities (1.4)

OpenSSL Permissions, Privileges, and Access Controls Vulnerability (CVE-2011-3207)

TYPO3 Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2012-3529)

Apache HTTP Server Incorrect Calculation of Buffer Size Vulnerability (CVE-2004-0940)

Severity

High

Classification

CVE-2022-3907 CWE-200 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update Authentication Bypass