CVE-2026-6909

UNKNOWN 0.0

Reflected XSS in ATutor

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	atutor
Product	atutor
Published	May 11, 2026
Last Updated	May 11, 2026

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Affected Versions

ATutor / ATutor

2.2.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Michał Majchrowicz (AFINE) Marcin Wyczechowski (AFINE) Pawel Zdunek (AFINE)