Is CVE-2026-6956 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-6956 being exploited in the wild.

How severe is CVE-2026-6956?

Informational severity, with a CVSS score of 5.1, published 11 May 2026.

Which products and versions are affected?

ATutor 2.2.4 (other versions may be affected).

Is there a fix for CVE-2026-6956?

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-2026-6956 attacked?

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

Am I affected by CVE-2026-6956?

Check whether you run ATutor 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-2026-6956: ATutor Reflected XSS in /install/install.php

CVE-2026-6956 · Severity: info · CVSS 5.1 · Published 2026-05-11

ATutor, an open-source learning management system used for online courses, contains a security flaw in its installation component. An attacker can trick a user into clicking a malicious link, allowing the attacker to run unauthorized scripts in the user's web browser. This could lead to the theft of login sessions or sensitive information within the application.

Technologies: ATutor. Vendors: ATutor.

Quick answers

Is CVE-2026-6956 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-6956 being exploited in the wild.
How severe is CVE-2026-6956?: Informational severity, with a CVSS score of 5.1, published 11 May 2026.
Which products and versions are affected?: ATutor 2.2.4 (other versions may be affected).
Is there a fix for CVE-2026-6956?: 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-2026-6956 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-6956?: Check whether you run ATutor 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

A Reflected Cross-Site Scripting (XSS) vulnerability exists in ATutor version 2.2.4 within the '/install/install.php' script. The vulnerability stems from improper neutralization of user-supplied input during web page generation (CWE-79). An unauthenticated remote attacker can exploit this by enticing a victim to visit a specially crafted URL. Successful exploitation allows the execution of arbitrary JavaScript in the context of the victim's browser session. The product is no longer supported, and no official patch is available.

Affected products

ATutor ATutor 2.2.4 (other versions may be affected)

Timeline

2026-05-11: advisory: Advisory published by CERT Polska
2026-05-11: disclosed: CVE-2026-6956 published to NVD

References

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