CVE-2020-6876 Cross-site scripting in eVDC

Medium 5.4 Published Updated

Remote attackers can inject malicious scripts into the ZTE eVDC web module to steal user cookies or disrupt page structure.

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
None listed

What is CVE-2020-6876?

CVE-2020-6876 is a medium-severity cross-site scripting vulnerability in eVDC, published on 26 Oct 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A ZTE product is impacted by an XSS vulnerability. The vulnerability is caused by the lack of correct verification of client data in the WEB module. By inserting malicious scripts into the web module, a remote attacker could trigger an XSS attack when the user browses the web page. Then the attacker could use the vulnerability to steal user cookies or destroy the page structure. This affects: eVDC ZXCLOUD-iROSV6.03.04

Weakness: CWE-79

Which versions are affected by CVE-2020-6876?

It affects 1 product.

Products include Zte Evdc.

How do I fix CVE-2020-6876?

No fix has been published for CVE-2020-6876 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-2020-6876 being exploited?

There is no known exploitation of CVE-2020-6876 in the wild and no public exploit code.

Sources

Also known as GHSA-6r5x-9mmr-r7q7.

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