CVE-2020-26583 Cross-site scripting in n/a

Medium 6.1 Published Updated

Unauthenticated attackers can upload malicious JavaScript files via the expenses claiming feature, leading to persistent XSS attacks against authenticated users.

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-2020-26583?

CVE-2020-26583 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Oct 2020. 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

An issue was discovered in Sage DPW 2020_06_x before 2020_06_002. It allows unauthenticated users to upload JavaScript (in a file) via the expenses claiming functionality. However, to view the file, authentication is required. By exploiting this vulnerability, an attacker can persistently include arbitrary HTML or JavaScript code into the affected web page. The vulnerability can be used to change the contents of the displayed site, redirect to other sites, or steal user credentials. Additionally, users are potential victims of browser exploits and JavaScript malware.

Weakness: CWE-434

Which versions are affected by CVE-2020-26583?

It affects 1 product.

Products include Sagedpw Sage Dpw.

How do I fix CVE-2020-26583?

No fix has been published for CVE-2020-26583 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-2020-26583 being exploited?

There is no known exploitation of CVE-2020-26583 in the wild and no public exploit code.

Sources

Also known as GHSA-2cvc-959c-65p4.

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