Vulnerability · Published May 4, 2026 · Assigned by TR-CERT

CVE-2025-14320XSS in Tegsoft's Online Support Application

Critical 9.8

In plain English

A critical-severity cross-site scripting in Online Support Application from Tegsoft Management and Information Services Trade Limited Company. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.3%top 74.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Tegsoft Management and Information Services Trade Limited Company Online Support Application allows Reflected XSS. This issue affects Online Support Application: from V3 through 31122025.

Affected products (as reported)

Vendor	Product	Versions
Tegsoft Management and Information Services Trade Limited Company	Online Support Application	V3 – through 31122025

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://www.usom.gov.tr/bildirim/tr-26-0142 government-resource, broken-link
https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0142 government-resource