PT-2021-16379 · WordPress · Events Calendar

Krzysztof Zając · Published 2021-12-06 · Updated 2021-12-07 · CVE-2021-24943

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: Registrations for the Events Calendar WordPress plugin versions prior to 2.7.6

Description: The issue arises from the lack of sanitization and escaping of the event id in the /wp-admin/admin-ajax.php 'rtec send unregister link' AJAX action, which is accessible to both unauthenticated and authenticated users. This oversight leads to an unauthenticated SQL injection.

Recommendations: For versions prior to 2.7.6, update to version 2.7.6 or later to resolve the issue. As a temporary workaround, consider restricting access to the 'rtec send unregister link' AJAX action until a patch is applied.

Exploit

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2021-24943

Affected Products

Events Calendar

References · 5

• 🔥 https://wpscan.com/vulnerability/ba50c590-42ee-4523-8aa0-87ac644b77ed · Exploit
• https://osv.dev/vulnerability/CVE-2021-24943 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-24943 · Security Note
• https://t.me/cibsecurity/33388 · Telegram Post
• https://t.me/cvenotify/24264 · Telegram Post