CVE-2021-39421 Cross-site scripting in n/a

Medium 6.1 Published 24 Jul 2023 Updated 24 Oct 2024

Attackers can execute arbitrary scripts in SeedDMS via XSS, potentially compromising user sessions and data.

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-2021-39421?

CVE-2021-39421 is a medium-severity cross-site scripting vulnerability in n/a, published on 24 Jul 2023. 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 SeedDMS v6.0.15 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

Weakness: CWE-79

Which versions are affected by CVE-2021-39421?

It affects 1 product.

Products include Seeddms Seeddms.

How do I fix CVE-2021-39421?

No fix has been published for CVE-2021-39421 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-2021-39421 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-39421 exists.

Sources

Also known as GHSA-gcxp-88pw-5248.