CVE-2024-40748 [20250102] - Core - XSS vector in the id attribute of menu lists
Attackers can inject malicious scripts via the id attribute in menu lists, potentially compromising user sessions or site integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-40748?
CVE-2024-40748 is a high-severity cross-site scripting vulnerability in Joomla Joomla\!, published on 7 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Lack of output escaping in the id attribute of menu lists.
Weakness: CWE-79
Which versions are affected by CVE-2024-40748?
1 open source package ship an affected version, including joomla. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
joomla Bitnami | From 3.9.0 | 5.2.3 |
Products include Joomla Joomla\!.
How do I fix CVE-2024-40748?
Upgrade joomla to 5.2.3 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2024-40748 being exploited?
There is no known exploitation of CVE-2024-40748 in the wild and no public exploit code.
Other vulnerabilities in Joomla Joomla\!
- CVE-2016-10033 PHPMailer Command Injection
- CVE-2023-23752 Joomla! Improper Access Control
- CVE-2026-48902 Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links
- CVE-2025-25226 [20250401] - Joomla Framework - SQL injection vulnerability in quoteNameStr method of Database package
- CVE-2022-23795 [20220303] - Core - User row are not bound to a authentication mechanism
Sources
Also known as BIT-joomla-2024-40748, GHSA-5wmg-fqv9-w9qf.