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Vulnerabilities in ATutor software
11 May 2026 | CERT Polska | #vulnerability, #warning, #cve
CVE ID CVE-2026-6909
Publication date 11 May 2026
Vendor ATutor
Product ATutor
Vulnerable versions 2.2.4
Vulnerability type (CWE) Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') (CWE-79)
Report source Report to CERT Polska
CVE ID CVE-2026-6956
Publication date 11 May 2026
Vendor ATutor
Product ATutor
Vulnerable versions 2.2.4
Vulnerability type (CWE) Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') (CWE-79)
Report source Report to CERT Polska

Description

CERT Polska has received a report about vulnerabilities in ATutor software and participated in coordination of their disclosure.

The vulnerability CVE-2026-6909: 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.

The vulnerability CVE-2026-6956: ATutor is vulnerable to Reflected XSS in /install/install.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 these vulnerabilities, 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.

Credits

We thank Michał Majchrowicz, Marcin Wyczechowski and Pawel Zdunek (AFINE) for the responsible vulnerability report.

More about the coordinated vulnerability disclosure process at CERT Polska can be found at https://cert.pl/en/cvd/.