CVE-2026-48902 Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links
Attackers can intercept password and username reset links sent over HTTP instead of HTTPS, potentially stealing credentials if Force SSL is not enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-48902?
CVE-2026-48902 is a critical vulnerability in Joomla Joomla\!, published on 26 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set.
Weakness: CWE-319
Which versions are affected by CVE-2026-48902?
1 open source package ship an affected version, including joomla. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
joomla Bitnami | From 3.0.0 | 5.4.6, 6.1.1 |
Products include Joomla Joomla\!.
How do I fix CVE-2026-48902?
Upgrade joomla to a fixed version for your release line: 5.4.6 or 6.1.1.
Is CVE-2026-48902 being exploited?
There is no known exploitation of CVE-2026-48902 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-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
- CVE-2022-23797 [20220305] - Core - Inadequate filtering on the selected Ids
Sources
Also known as BIT-joomla-2026-48902, GHSA-w4ph-7vgc-vxrf.