Is CVE-2026-30895 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-30895 being exploited in the wild.

How severe is CVE-2026-30895?

Informational severity, with a CVSS score of 6.9, published 26 May 2026.

Which products and versions are affected?

Joomla! Project Joomla! CMS 4.0.0-5.4.5, 6.0.0-6.1.0.

Is there a fix for CVE-2026-30895?

A patch was published on 2026-05-26: Fixed in versions 5.4.6 and 6.1.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-30895 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-30895?

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-2026-30895: Joomla! CMS XSS in readmore links for com_content

CVE-2026-30895 · Severity: info · CVSS 6.9 · Published 2026-05-26

Joomla! CMS, a popular platform for building and managing websites, contains a security flaw in how it handles 'read more' links within content. An attacker with high-level administrative privileges could exploit this to inject malicious scripts into the website. If a site visitor or another administrator views the affected content, the script could execute in their browser, potentially leading to unauthorized actions or data theft.

Quick answers

Is CVE-2026-30895 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-30895 being exploited in the wild.
How severe is CVE-2026-30895?: Informational severity, with a CVSS score of 6.9, published 26 May 2026.
Which products and versions are affected?: Joomla! Project Joomla! CMS 4.0.0-5.4.5, 6.0.0-6.1.0.
Is there a fix for CVE-2026-30895?: A patch was published on 2026-05-26: Fixed in versions 5.4.6 and 6.1.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-30895 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-30895?: 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 the Joomla! CMS 'com_content' component. The root cause is a failure to properly escape output when generating 'readmore' links. An attacker with high privileges (PR:H) can inject malicious payloads that execute in the context of a user's browser session when they interact with the affected links. The vulnerability affects Joomla! versions 4.0.0 through 5.4.5 and 6.0.0 through 6.1.0. Users are advised to upgrade to versions 5.4.6 or 6.1.1 to remediate the issue.

Affected products

Joomla! Project Joomla! CMS 4.0.0-5.4.5, 6.0.0-6.1.0

Timeline

2026-04-14: other: Reported to vendor
2026-05-26: patched: Fixed in versions 5.4.6 and 6.1.1
2026-05-26: disclosed: Public disclosure of CVE-2026-30895

References

https://developer.joomla.org/security-centre/1036-20260504-core-xss-in-readmore-links

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