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

Critical 9.8 Published Updated

Reflected XSS in Tegsoft Online Support Application allows attackers to inject malicious scripts into web pages viewed by other users.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-14320?

CVE-2025-14320 is a critical cross-site scripting vulnerability in Tegsoft Management and Information Services Trade Limited Company Online Support Application, published on 4 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

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.

Weakness: CWE-79

Which versions are affected by CVE-2025-14320?

How do I fix CVE-2025-14320?

No fix has been published for CVE-2025-14320 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-14320 being exploited?

There is no known exploitation of CVE-2025-14320 in the wild and no public exploit code.

Sources

Also known as GHSA-fm49-vp9p-4536.

Is CVE-2025-14320 in your software?

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