CVE-2021-27308 Cross-site scripting in n/a

Medium 4.8 Published 22 Mar 2021 Updated 3 Aug 2024

Remote attackers can inject JavaScript into the admin login panel via the redirect parameter, potentially compromising administrator sessions.

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-2021-27308?

CVE-2021-27308 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Mar 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A cross-site scripting (XSS) vulnerability in the admin login panel in 4images version 1.8 allows remote attackers to inject JavaScript via the "redirect" parameter.

Weakness: CWE-79

Which versions are affected by CVE-2021-27308?

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

Package	Affected	Fixed in
`rum` Bitnami	From `1.8.0`	`1.8.1`

Products include 4homepages 4images.

How do I fix CVE-2021-27308?

Upgrade rum to 1.8.1 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-2021-27308 being exploited?

There is no known exploitation of CVE-2021-27308 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as BIT-rum-2021-27308, GHSA-r57m-c9hr-x87c.