PT-2021-11866 · WordPress · Newsletters

Published 2021-01-01 · Updated 2021-01-11 · CVE-2020-35932

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Newsletter plugin versions prior to 6.8.2 for WordPress

Description: The issue allows authenticated remote attackers with minimal privileges to inject arbitrary PHP objects via the options[inline edits] parameter using the "tpnc render" AJAX action. Exploitability depends on PHP objects that might be present with certain other plugins or themes.

Recommendations: For versions prior to 6.8.2, update to version 6.8.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the "tpnc render" AJAX action to minimize the risk of exploitation. Avoid using the options[inline edits] parameter in the affected AJAX endpoint until the issue is resolved.

Exploit

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2020-35932

Affected Products

Newsletters

References · 5

• 🔥 https://wordfence.com/blog/2020/08/newsletter-plugin-vulnerabilities-affect-over-300000-sites · Exploit
• https://osv.dev/vulnerability/CVE-2020-35932 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-35932 · Security Note
• https://t.me/cibsecurity/21493 · Telegram Post
• https://t.me/cvenotify/8069 · Telegram Post