PT-2021-20605 · WordPress · Post Index Wordpress Plugin

Published 2021-08-02 · Updated 2021-08-11 · CVE-2021-34637

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: The Post Index WordPress plugin versions up to and including 0.7.5

Description: The issue allows attackers to inject arbitrary web scripts via Cross-Site Request Forgery, specifically through the OptionsPage function found in the ~/php/settings.php file. This enables attackers to execute malicious actions on the affected system.

Recommendations: For versions up to and including 0.7.5, update to a version later than 0.7.5 to resolve the issue. As a temporary workaround, consider restricting access to the OptionsPage function in the ~/php/settings.php file until a patch is available.

Exploit

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2021-34637

Affected Products

Post Index Wordpress Plugin

References · 7

• 🔥 https://plugins.trac.wordpress.org/browser/post-index/trunk/php/settings.php#L86 · Exploit
• https://osv.dev/vulnerability/CVE-2021-34637 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34637 · Security Note
• https://t.me/cvenotify/19115 · Telegram Post
• https://wordfence.com/vulnerability-advisories/#CVE-2021-34637 · Note
• https://t.me/cvenotify/18535 · Telegram Post
• https://t.me/cibsecurity/26703 · Telegram Post