PT-2024-16915 · WordPress · Custom Css

Dale Mavers + 1 · Published 2024-11-23 · Updated 2024-11-23 · CVE-2024-11330

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 Custom CSS, JS & PHP plugin for WordPress versions up to, and including, 2.3.0

Description The issue arises from the use of add query arg and remove query arg without proper escaping on the URL, leading to Reflected Cross-Site Scripting. This allows unauthenticated attackers to inject arbitrary web scripts into pages if they can trick a user into performing an action like clicking on a link.

Recommendations For versions up to, and including, 2.3.0, update to a version later than 2.3.0 to resolve the issue. As a temporary workaround, consider restricting access to the plugin's functionality until a patch is available.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2024-11330

Affected Products

Custom Css

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2024-11330 · Security Note
• https://t.me/cvenotify/102426 · Telegram Post
• https://twitter.com/CVEnew/status/1860347979238154600 · Twitter Post
• https://plugins.trac.wordpress.org/browser/custom-css/tags/2.3.0/includes/settings/class-alg-custom-css-js-php-settings.php#L299 · Note
• https://plugins.trac.wordpress.org/changeset/3194786/custom-css/trunk/includes/settings/class-alg-custom-css-js-php-settings.php · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/3497974d-cf58-4b38-a2c9-9bcd119ef43e?source=cve · Note