Description

KGS Software tia Viewer is vulnerable to Stored XSS via the annotation API. Due to the lack of input validation, an authenticated attacker can inject arbitrary JavaScript payload into a stickynote annotation. When any user opens the document, the viewer renders the annotation and the browser executes the payload. This may lead to compromising the user's session. This issue has been fixed in version 1.2.8.

Related CPE's

Could not find any relations

References

https://cert.pl/en/posts/2026/10/CVE-2026-105987

https://www.kgs-software.com/en/products/tia-viewer

Weaknesses

[email protected]

Primary
CWE-79

CVSS impact metrics

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

5.1 · Medium

Information

Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-27T15:16:31.130Z

3 hours ago

Last modified

2026-10-27T16:04:22.707Z

2 hours ago