CVE-2020-35853 Cross-site scripting in n/a

Medium 4.8 Published 25 Jan 2021 Updated 4 Aug 2024

Attackers can inject malicious scripts into image URLs to steal user cookies and potentially hijack accounts in 4images Image Gallery.

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: Available

What is CVE-2020-35853?

CVE-2020-35853 is a medium-severity cross-site scripting vulnerability in n/a, published on 25 Jan 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

4images Image Gallery Management System 1.7.11 is affected by cross-site scripting (XSS) in the Image URL. This vulnerability can result in an attacker to inject the XSS payload into the IMAGE URL. Each time a user visits that URL, the XSS triggers and the attacker can be able to steal the cookie according to the crafted payload.

Weakness: CWE-79

Which versions are affected by CVE-2020-35853?

1 open source package ship an affected version, including rum. It affects 1 product.

Package	Affected	Fixed in
`rum` Bitnami	From `1.7.11`	`1.7.12`

Products include 4homepages 4images.

How do I fix CVE-2020-35853?

Upgrade rum to 1.7.12 or later.

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-2020-35853 being exploited?

There is no known exploitation of CVE-2020-35853 in the wild and no public exploit code.

Sources

Also known as BIT-rum-2020-35853, GHSA-v8x5-6v34-c2wf.