GHSA-v4q9-437p-mhpg Leantime allows Cross Site Scripting (XSS) and SQL Injection (SQLi)

Not scored Published

Attackers can inject malicious scripts via unsanitized GET parameters in Leantime, leading to code execution or data theft.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is GHSA-v4q9-437p-mhpg?

GHSA-v4q9-437p-mhpg is a cross-site scripting vulnerability in leantime/leantime, published on 21 Feb 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Summary

A cross-site scripting (XSS) vulnerability has been identified in Leantime. The vulnerability allows an attacker to inject malicious scripts into certain fields, potentially leading to the execution of arbitrary code or unauthorized access to user-sensitive information. The code does not include any validation or sanitization of the $_GET["id"] parameter. As a result, it directly incorporates the user-supplied value into the source path without any checks.

Which versions are affected by GHSA-v4q9-437p-mhpg?

2 open source packages ship an affected version, including leantime/leantime.

PackageAffectedFixed in
leantime/leantime PackagistAll versions3.3
leantime/leantime PackagistAll versions3.3

How do I fix GHSA-v4q9-437p-mhpg?

Upgrade leantime/leantime to 3.3 or later.

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 GHSA-v4q9-437p-mhpg being exploited?

There is no known exploitation of GHSA-v4q9-437p-mhpg in the wild and no public exploit code.

Sources

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