Cyber Resilience

CVE-2025-14320

CriticalUpdated

Published: 04 May 2026

Published
04 May 2026
Modified
04 June 2026
KEV Added
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Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0033 24.6th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2025-14320 is a critical-severity Cross-site Scripting (CWE-79) vulnerability in Gov (inferred from references). Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 24.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).

Deeper analysis

CVE-2025-14320 is an improper neutralization of input during web page generation vulnerability, classified as reflected cross-site scripting (XSS) under CWE-79, affecting the Tegsoft Management and Information Services Trade Limited Company Online Support Application. The issue impacts versions from V3 through 31122025. Published on 2026-05-04, it carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Remote attackers can exploit this vulnerability over the network with low attack complexity, requiring no privileges, authentication, or user interaction. Successful exploitation enables high-impact compromise of confidentiality, integrity, and availability, potentially allowing arbitrary code execution in the context of the affected application.

Mitigation guidance is available in the advisory published by USOM at https://www.usom.gov.tr/bildirim/tr-26-0142.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-79

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Reflected XSS in public-facing web app directly enables remote unauthenticated exploitation of the application.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2024-56060Shared CWE-79
CVE-2022-50908Shared CWE-79
CVE-2026-44669Shared CWE-79
CVE-2025-23882Shared CWE-79
CVE-2025-68501Shared CWE-79
CVE-2025-49043Shared CWE-79
CVE-2025-69316Shared CWE-79
CVE-2025-50006Shared CWE-79
CVE-2025-49045Shared CWE-79
CVE-2026-45323Shared CWE-79

Affected Assets

Gov
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inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-15 Information Output Filtering good match
prevent

Filters information outputs prior to display in web pages, directly neutralizing reflected XSS payloads before they execute in users' browsers.

SI-10 Information Input Validation good match
prevent

Validates the content of user inputs to the web application, preventing improper neutralization that enables XSS injection.

SI-2 Flaw Remediation good match
preventrecover

Requires identification, reporting, and correction of the specific XSS flaw in the Tegsoft Online Support Application across affected versions.

References