CVE-2026-42881: STIGQter: Arbitrary File Write leading to Local Code Execution via Export HTML

Severity: high (CVSS 8.4 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-14 · updated 2026-10-26
Weakness: CWE-22

Description

STIGQter is an open-source reimplementation of DISA's STIG Viewer. From 0.1.2 to before 1.2.7, an attacker can achieve local code execution (LCE) with the privileges of the user running STIGQter. This requires user interaction: the victim must open the malicious .stigqter file and explicitly run the "Export HTML" action. This vulnerability is fixed in 1.2.7.

Affected products

squinky86 STIGQter: from 0.1.2, < 1.2.7

References

https://github.com/squinky86/STIGQter/security/advisories/GHSA-mcv5-5j7p-vqh7
https://www.bitwizemusic.com/security/advisories/bve-2026-0007
https://www.bitwizemusic.com/security/advisories/bve-2026-0007/

Get alerted when CVE-2026-42881 or the next vulnerability affects your stack