TI-2021-14227 Aliases CVE-2021-35489 GHSA-6642-wv2w-7c29

Thruk 2.40-2 allows…

LOW 29CWE-79Published 2021-11-09 · Updated 2024-08-04

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

Thruk 2.40-2 allows /thruk/#cgi-bin/extinfo.cgi?type=2&host={HOSTNAME]&service={SERVICENAME]&backend={BACKEND] Reflected XSS via the host or service parameter. An attacker could inject arbitrary JavaScript into extinfo.cgi. The malicious payload would be triggered every time an authenticated user browses the page containing it.

Why it matters now

EPSS 0.00861 58th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

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

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:thruk:thruk:2.40-2:::::::*	2.40-2	Vulnerable	Thruk

cpe:2.3:a:thruk:thruk:2.40-2:*:*:*:*:*:*:* Versions 2.40-2 Vulnerable ·Thruk

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-35489
2026-10-03 Alias added: GHSA-6642-wv2w-7c29

References

Exploit 1

https://www.gruppotim.it/redteam

Advisory 1

https://www.thruk.org/changelog.html

TI-2024-15816 Thruk Incorrect limitation of a pathname to a restricted directory (Path Traversal) (CWE-22) CVSS 3.1CRITICAL 9.8
TI-2023-16942 Thruk has Path Traversal Vulnerability in panorama.pm CVSS 3.1HIGH 8.8
TI-2021-14226 Thruk 2.40-2 allows /thruk/#cgi-bin/status.cgi?style=combined&title={TITLE] Reflected XSS… CVSS 3.1MEDIUM 6.1
TI-2021-14228 Thruk before 2.44 allows XSS for a quick command. CVSS 3.1MEDIUM 5.4

Sources

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