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

Drupal Core 4.6.x Cross-Site Scripting (4.6.0 - 4.6.7)

WordPress Plugin Gutenberg Blocks by WordPress Download Manager Cross-Site Scripting (2.1.8)

WordPress Plugin Redirection Cross-Site Request Forgery (1.1.4)

WordPress Plugin Travelpayouts:All Travel Brands in One Place Cross-Site Request Forgery (1.0.16)

WordPress Plugin Donation Thermometer Cross-Site Scripting (2.1.2)

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