Is CVE-2026-96773 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-96773 being exploited in the wild.

How severe is CVE-2026-96773?

Medium severity, with a CVSS score of 4.3, published 24 September 2026.

Which products and versions are affected?

Intelliants Subrion CMS up to 4.2.1.

Is there a fix for CVE-2026-96773?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-96773 attacked?

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

Am I affected by CVE-2026-96773?

Check whether you run Intelliants Subrion CMS at an affected version. 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-2026-96773: Intelliants Subrion CMS open redirect in login

CVE-2026-96773 · Severity: medium · CVSS 4.3 · Published 2026-09-24

Subrion CMS, a content management system used to build and manage websites, contains an open redirect flaw in its login page. An attacker can trick users into logging in through a malicious link that redirects them to a phishing site immediately after authentication, enabling credential theft and social engineering attacks.

Technologies: Intelliants Subrion CMS. Vendors: Intelliants.

Quick answers

Is CVE-2026-96773 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-96773 being exploited in the wild.
How severe is CVE-2026-96773?: Medium severity, with a CVSS score of 4.3, published 24 September 2026.
Which products and versions are affected?: Intelliants Subrion CMS up to 4.2.1.
Is there a fix for CVE-2026-96773?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-96773 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-96773?: Check whether you run Intelliants Subrion CMS at an affected version. 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

The vulnerability exists in the login handler (iaUsers::authorize in front/login.php) which captures the HTTP Referer header without validation and stores it in the session. Upon successful authentication, this unvalidated Referer is used directly in the Location response header, allowing an attacker to redirect authenticated users to arbitrary external sites. The flaw requires user interaction (login submission) and network-based attack vector with no authentication prerequisite beyond valid credentials.

Affected products

Intelliants Subrion CMS up to 4.2.1

Timeline

2026-09-24: disclosed: Public disclosure via GitHub advisory

References

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