CVE-2025-70890 Cross-site scripting in n/a

Medium 6.1 Published 15 Jan 2026 Updated 15 Jan 2026

An authenticated attacker can inject arbitrary JavaScript into the username field, leading to stored XSS execution in victim browsers.

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-2025-70890?

CVE-2025-70890 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 Jan 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

A stored cross-site scripting (XSS) vulnerability exists in Cyber Cafe Management System v1.0. An authenticated attacker can inject arbitrary JavaScript code into the username parameter via the add-users.php endpoint. The injected payload is stored and executed in the victim s browser when the affected page is accessed.

Weakness: CWE-79

Which versions are affected by CVE-2025-70890?

It affects 1 product.

Products include Phpgurukul Cyber Cafe Management System.

How do I fix CVE-2025-70890?

No fix has been published for CVE-2025-70890 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-2025-70890 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-70890 exists.

Sources

Also known as GHSA-h5pm-m2jg-jvc5.