CVE-2026-64972

Reflected XSS in ATutor

Published: Aug 20, 2026Updated: Aug 28, 2026 Sources: CVE List NVDCWE-79

N/ACVSS

NVD MITRE

Description

ATutor is vulnerable to Reflected XSS via popup parameter in preview.php. An authenticated attacker can inject a double quote into the popup parameter, break out of the attribute value, and append a new event handler such as onload. The related preview_top.php file sanitises these parameters, but that does not prevent XSS in the parent frameset rendered by preview.php itself. Product is no longer actively supported and the vulnerabilities have not been fixed. 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://atutor.github.io/

atutor.github.io

https://cert.pl/en/posts/2026/08/CVE-2026-64960

cert.pl

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