Is CVE-2026-48949 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-48949 being exploited in the wild.

How severe is CVE-2026-48949?

Informational severity, with a CVSS score of 5.9, published 7 July 2026.

Which products and versions are affected?

Joomla! Project Joomla! CMS业务 4.2.0-5.4.6, 6.0.0-6.1.1.

Is there a fix for CVE-2026-48949?

A patch was published on 2026-07-07: Fixed in versions 5.4.7 and 6.1.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-48949 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-48949?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-48949: Joomla! CMS XSS in MFA management views

CVE-2026-48949 · Severity: info · CVSS 5.9 · Published 2026-07-07

Joomla! CMS, a popular platform for building and managing websites, contains a security flaw in its Multi-Factor Authentication (MFA) management interface. An attacker with high-level administrative privileges could inject malicious scripts into these management views. If successful, this could allow the attacker to execute unauthorized actions in the context of another user's session, potentially compromising sensitive administrative functions.

Quick answers

Is CVE-2026-48949 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-48949 being exploited in the wild.
How severe is CVE-2026-48949?: Informational severity, with a CVSS score of 5.9, published 7 July 2026.
Which products and versions are affected?: Joomla! Project Joomla! CMS业务 4.2.0-5.4.6, 6.0.0-6.1.1.
Is there a fix for CVE-2026-48949?: A patch was published on 2026-07-07: Fixed in versions 5.4.7 and 6.1.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-48949 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-48949?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stored cross-site scripting (XSS) vulnerability exists in Joomla! CMS versions 4.2.0 through 5.4.6 and 6.0.0 through 6.1.1. The flaw is located in the MFA method management views, where a lack of proper input validation allows for the injection of malicious scripts. Exploitation requires an attacker to have high privileges (PR:H) and involves user interaction (UI:P) from another administrator. Successful exploitation can lead to a high impact on confidentiality and integrity within the management interface. The issue has been addressed in Joomla! CMS versions 5.4.7 and 6.1.2.

Affected products

Joomla! Project Joomla! CMS业务 4.2.0-5.4.6, 6.0.0-6.1.1

Timeline

2026-05-07: disclosed: Vulnerability reported to Joomla! Project
2026-07-07: patched: Fixed in versions 5.4.7 and 6.1.2
2026-07-07: advisory

References

https://developer.joomla.org/security-centre/1057-20260703-core-xss-in-mfa-method-management.html

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