CVE-2025-15562 Reflected Cross-Site Scripting in NesterSoft WorkTime

Medium 6.1 Published 19 Feb 2026 Updated 20 Feb 2026

Attackers can execute arbitrary JavaScript in victims' browsers via reflected XSS in the WorkTime report API endpoint.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-15562?

CVE-2025-15562 is a medium-severity cross-site scripting vulnerability in NesterSoft Inc. WorkTime (on-prem/cloud), published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The server API endpoint /report/internet/urls reflects received data into the HTML response without applying proper encoding or filtering. This allows an attacker to execute arbitrary JavaScript in the victim's browser if the victim opens a URL prepared by the attacker.

Weakness: CWE-79

Which versions are affected by CVE-2025-15562?

It affects 1 product.

Products include Nestersoft Worktime.

How do I fix CVE-2025-15562?

No fix has been published for CVE-2025-15562 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-2025-15562 being exploited?

There is no known exploitation of CVE-2025-15562 in the wild and no public exploit code.

Sources

Also known as GHSA-3822-8jq8-pqhh.