CVE-2011-4626 Cross-site scripting in TYPO3

Medium 6.1 Published Updated

Remote attackers can inject arbitrary web script or HTML via the typolink function, potentially leading to session hijacking or malicious actions.

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
Available

What is CVE-2011-4626?

CVE-2011-4626 is a medium-severity cross-site scripting vulnerability in Typo3 Typo3, published on 6 Nov 2019. 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

Cross-site Scripting (XSS) in TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to inject arbitrary web script or HTML via the "JSwindow" property of the typolink function.

Weakness: CWE-79

Which versions are affected by CVE-2011-4626?

It affects 1 product.

Products include Typo3 Typo3.

How do I fix CVE-2011-4626?

Upgrade to a fixed version.

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-2011-4626 being exploited?

There is no known exploitation of CVE-2011-4626 in the wild and no public exploit code.

All Typo3 Typo3 vulnerabilities

Sources

Also known as GHSA-58vj-r9cf-29fq.

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