CVE-2020-17451 Cross-site scripting in n/a

Medium 4.8 Published Updated

An admin can inject malicious scripts into page content or system preferences, potentially leading to code execution in the context of other users.

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-2020-17451?

CVE-2020-17451 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Aug 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

flatCore before 1.5.7 allows XSS by an admin via the acp/acp.php?tn=pages&sub=edit&editpage=1 page_linkname, page_title, page_content, or page_extracontent parameter, or the acp/acp.php?tn=system&sub=sys_pref prefs_pagename, prefs_pagetitle, or prefs_pagesubtitle parameter.

Weakness: CWE-79

Which versions are affected by CVE-2020-17451?

It affects 1 product.

Products include Flatcore Flatcore.

How do I fix CVE-2020-17451?

No fix has been published for CVE-2020-17451 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-2020-17451 being exploited?

There is no known exploitation of CVE-2020-17451 in the wild and no public exploit code.

Sources

Also known as GHSA-m5g4-cg24-mc6m.

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