CVE-2017-7897 MantisBT XSS via my_view_page.php and view_user_page.php

Medium 6.1 Published Updated

Remote attackers can inject arbitrary code via crafted URLs in MantisBT, potentially executing scripts if Content Security Policy settings permit.

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
Available

What is CVE-2017-7897?

CVE-2017-7897 is a medium-severity cross-site scripting vulnerability in Mantisbt Mantisbt, published on 18 Apr 2017. 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 cross-site scripting (XSS) vulnerability in the MantisBT (2.3.x before 2.3.2) Timeline include page, used in My View (my_view_page.php) and User Information (view_user_page.php) pages, allows remote attackers to inject arbitrary code (if CSP settings permit it) through crafted PATH_INFO in a URL, due to use of unsanitized $_SERVER['PHP_SELF'] to generate URLs.

Weakness: CWE-79

Which versions are affected by CVE-2017-7897?

2 open source packages ship an affected version, including mantisbt/mantisbt. It affects 1 product.

PackageAffectedFixed in
mantisbt/mantisbt PackagistFrom 2.3.02.3.2
mantisbt/mantisbt PackagistFrom 2.3.02.3.2

Products include Mantisbt Mantisbt.

How do I fix CVE-2017-7897?

Upgrade mantisbt/mantisbt to 2.3.2 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 CVE-2017-7897 being exploited?

There is no known exploitation of CVE-2017-7897 in the wild and no public exploit code.

All Mantisbt Mantisbt vulnerabilities

Sources

Also known as GHSA-8r2m-qhff-jm2c.

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