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CVE-2026-6956

Reflected XSS in ATutor

MEDIUM
5.1
CVSS Score
Published: May 11, 2026 at 09:40 AM UTC
Updated: June 17, 2026 at 11:01 AM UTC
1 product affected across 1 vendorATutor

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Severity
MEDIUM5.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Third Party Advisory
Source: cverecord
https://cert.pl/en/posts/2026/05/CVE-2026-6909
Product
Source: cverecord
https://atutor.github.io/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.1MEDIUMCERT-PL
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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