Home→Vulnerabilities→CVE-2026-6956
Disclosed

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 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.

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Exploitation Probability (EPSS)

Low Priority
0.10%

The Exploit Prediction Scoring System (EPSS) uses machine learning to estimate the probability that a vulnerability will be exploited in the wild within the next 30 days.

0% (Theoretical)100% (Certainty)

7-Day Exploitation Trend

Vulnerability Timeline

2 events
May 11, 2026
Vulnerability Disclosed
Published to component-level vulnerability database.
May 12, 2026
Last Updated
Record updated with new analysis or tags.

Threat Actor Attribution

PREMIUM INTEL
Associated Groups:Lazarus Group, APT28
Ransomware Campaigns:LockBit 3.0, BlackCat
IoCs (Indicators):14 IPs, 3 Hashes

Remediation & Mitigation

SOLUTION

Official patches and mitigation steps are available for this vulnerability.

# Update Command
apt-get update && apt-get upgrade -y specific-package
# Verify installation
dpkg -l | grep package-name

References

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

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Check your domain or package.json for CVE-2026-6956 exposure.

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Vulnerability Details

CVSS Base Score
N/A/ 10
Published Date
May 11, 2026
Last Modified
May 12, 2026
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