CVE-2026-6909

Reflected XSS in ATutor

Published: May 11, 2026Updated: May 12, 2026 Sources: CVE List NVDCWE-79

N/ACVSS

NVD MITRE

Description

ATutor is vulnerable to Reflected XSS in /install/upgrade.php endpoint. An attacker can provide a specially crafted URL that, when opened, results in arbitrary JavaScript execution in the victim's browser. Product is no longer actively supported. Maintainers of this project were notified early about this vulnerability, but did not respond with the details of the vulnerability or vulnerable version range. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.

No summary for this CVE yet.

Weaknesses

CWE-79

Affected Products

ATutor

commercial

ATutorOn-prem

Web & CMS Plugins / cms-core

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Execution

Initial Access

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References

https://cert.pl/en/posts/2026/05/CVE-2026-6909

cert.pl

https://atutor.github.io/

atutor.github.io

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