CVE-2024-27187 [20240804] - Core - Improper ACL for backend profile view
Backend users can improperly overwrite their usernames due to flawed access controls, requiring administrators to patch the Joomla CMS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-27187?
CVE-2024-27187 is a high-severity missing authorization vulnerability in Joomla Joomla\!, published on 20 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper Access Controls allows backend users to overwrite their username when disallowed.
Weakness: CWE-284
Which versions are affected by CVE-2024-27187?
1 open source package ship an affected version, including joomla. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
joomla Bitnami | From 4.0.0 | 5.1.3 |
Products include Joomla Joomla\!.
How do I fix CVE-2024-27187?
Upgrade joomla to 5.1.3 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2024-27187 being exploited?
There is no known exploitation of CVE-2024-27187 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-2024-27187, GHSA-6pqq-98x8-92qf.