CVE-2020-25878 Cross-site scripting in n/a

Medium 4.8 Published Updated

Authenticated attackers can execute arbitrary scripts via stored XSS in BlackCat CMS Admin-Tools, potentially leading to session hijacking or site defacement.

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

What is CVE-2020-25878?

CVE-2020-25878 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Jul 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A stored cross site scripting (XSS) vulnerability in the 'Admin-Tools' feature of BlackCat CMS 1.3.6 allows authenticated attackers to execute arbitrary web scripts or HTML via crafted payloads entered into the 'Output Filters' and 'Droplets' modules.

Weakness: CWE-79

Which versions are affected by CVE-2020-25878?

It affects 1 product.

Products include Blackcat-Cms Blackcat Cms.

How do I fix CVE-2020-25878?

No fix has been published for CVE-2020-25878 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-2020-25878 being exploited?

There is no known exploitation of CVE-2020-25878 in the wild and no public exploit code.

Sources

Also known as GHSA-p49q-2hjg-86qw.

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