CVE-2009-3633 TYPO3 API function vulnerable to Cross-site Scripting

What is CVE-2009-3633?

CVE-2009-3633 is a medium-severity cross-site scripting vulnerability in Typo3 Typo3, published on 2 Nov 2009. 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) vulnerability in the t3lib_div::quoteJSvalue API function in TYPO3 4.0.13 and earlier, 4.1.x before 4.1.13, 4.2.x before 4.2.10, and 4.3.x before 4.3beta2 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors related to the sanitizing algorithm.

Weakness: CWE-352

Which versions are affected by CVE-2009-3633?

8 open source packages ship an affected version, including typo3/cms-core. It affects 1 product.

Products include Typo3 Typo3.

How do I fix CVE-2009-3633?

Upgrade typo3/cms-core to a fixed version for your release line: 4.1.13, 4.2.10 or 4.3beta2.

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-2009-3633 being exploited?

There is no known exploitation of CVE-2009-3633 in the wild and no public exploit code.

Other vulnerabilities in Typo3 Typo3

• CVE-2009-0258 Indexed Search Engine for TYPO3 Command Execution via Metacharacter Injection Critical 10.0
• CVE-2011-3583 Typo3 SQL injection due to faulty prepared statements Critical 9.8
• CVE-2011-4628 Typo3 Authentication Bypass Critical 9.8
• CVE-2023-24814 Persisted Cross-Site Scripting in Frontend Rendering in typo3 High 8.8
• CVE-2021-41113 Cross-Site-Request-Forgery in Backend URI Handling in Typo3 High 8.8

All Typo3 Typo3 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-m7rg-85g8-28m9.