PT-2024-39487 · WordPress · Smart Custom 404 Error Page

Craig Smith + 1 · Published 2024-10-03 · Updated 2024-10-16 · CVE-2024-9204

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions The Smart Custom 404 Error Page plugin for WordPress versions up to, and including, 11.4.7

Description The issue is related to Reflected Cross-Site Scripting via the $ SERVER['REQUEST URI'] variable, caused by insufficient input sanitization and output escaping. This allows unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Recommendations For versions up to, and including, 11.4.7, update to a version that fixes the Reflected Cross-Site Scripting issue. As a temporary workaround, consider restricting access to the plugin's functionality until a patch is available. Avoid using the $ SERVER['REQUEST URI'] variable in sensitive operations until the issue is resolved.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2024-9204

Affected Products

Smart Custom 404 Error Page

References · 11

• https://osv.dev/vulnerability/CVE-2024-9204 · Vendor Advisory
• https://plugins.trac.wordpress.org/changeset/3161639/#file2 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-9204 · Security Note
• https://plugins.trac.wordpress.org/browser/404page/tags/11.4.7/functions.php#L112 · Note
• https://t.me/cvedetector/6951 · Telegram Post
• https://twitter.com/CVEnew/status/1842062688832090306 · Twitter Post
• https://plugins.trac.wordpress.org/browser/404page/tags/11.4.7/inc/class-404page.php#L1227 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/93928123-c90d-4bbb-b51d-33e809867b79?source=cve · Note
• https://t.me/cvenotify/97005 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1842168381341905102 · Twitter Post
• https://t.me/cvenotify/98275 · Telegram Post