TI-2026-06088 Aliases CVE-2026-6956 GHSA-mv66-6hmr-f6wq

Reflected XSS in ATutor

LOW 23CWE-79Published 2026-05-11 · Updated 2026-05-11

Key facts

Attack vector: Network
Privileges required: None
User interaction: Active
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: None · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00391 33rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
ATutor	ATutor	2.2.4	—	No fix listed	CNA

ATutor VendorATutor Affected 2.2.4 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-6956
2026-10-03 Alias added: GHSA-mv66-6hmr-f6wq

References

Advisory 1

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

Other 1

https://atutor.github.io/

TI-2016-02300 SQL injection vulnerability in include/lib/mysql_connect.inc.php in ATutor 2.2.1 allows… CVSS 3.0CRITICAL 9.8
TI-2019-09087 ATutor 2.2.4 allows Arbitrary File Upload and Directory Traversal, resulting in remote… CVSS 3.1HIGH 8.8
TI-2017-14349 ATutor versions 2.2.1 and earlier are vulnerable to a directory traversal and file… CVSS 3.0CRITICAL 9.8
TI-2020-19282 ATutor 2.2.4 - 'id' SQL Injection CVSS 4.0HIGH 7.0
TI-2023-11865 A Cross-site scripting (XSS) vulnerability in the function encrypt_password() in… CVSS 3.1MEDIUM 6.1
TI-2019-12106 In ATutor 2.2.4, an unauthenticated attacker can change the application settings and… CVSS 3.1CRITICAL 9.8

See all 54 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences