CVE-2012-3530 Typo3 API XSS Vulnerability

What is CVE-2012-3530?

CVE-2012-3530 is a medium-severity cross-site scripting vulnerability in Typo3 Typo3, published on 5 Sep 2012. 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

Incomplete blacklist vulnerability in the t3lib_div::quoteJSvalue API function in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote attackers to conduct cross-site scripting (XSS) attacks via certain HTML5 JavaScript events.

Which versions are affected by CVE-2012-3530?

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

Products include Typo3 Typo3.

How do I fix CVE-2012-3530?

Upgrade typo3/cms to a fixed version for your release line: 4.5.19, 4.6.12 or 4.7.4.

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-2012-3530 being exploited?

There is no known exploitation of CVE-2012-3530 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-94c2-g68f-9r98.