CVE-2020-11065 Cross-Site Scripting in TYPO3 CMS
Attackers can execute arbitrary scripts in victim browsers via vulnerable link tags in TYPO3 CMS, requiring an upgrade to patched versions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-11065?
CVE-2020-11065 is a medium-severity cross-site scripting vulnerability in Typo3 Typo3, published on 13 May 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
In TYPO3 CMS greater than or equal to 9.5.12 and less than 9.5.17, and greater than or equal to 10.2.0 and less than 10.4.2, it has been discovered that link tags generated by typolink functionality are vulnerable to cross-site scripting; properties being assigned as HTML attributes have not been parsed correctly. This has been fixed in 9.5.17 and 10.4.2.
Weakness: CWE-79
Which versions are affected by CVE-2020-11065?
9 open source packages ship an affected version, including typo3/cms, typo3 and typo3/cms-core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
typo3/cms Packagist | From 10.0.0 | 10.4.2 |
typo3/cms Packagist | From 10.0.0 | 10.4.2 |
typo3/cms Packagist | From 9.0.0 | 9.5.17 |
typo3/cms Packagist | From 9.0.0 | 9.5.17 |
typo3 Bitnami | From 9.5.12 | 9.5.17, 10.4.2 |
typo3/cms-core Packagist | From 10.0.0 | 10.4.2 |
3 more packages
typo3/cms-core Packagist | From 10.0.0 | 10.4.2 |
typo3/cms-core Packagist | From 9.0.0 | 9.5.17 |
typo3/cms-core Packagist | From 9.0.0 | 9.5.17 |
Products include Typo3 Typo3.
How do I fix CVE-2020-11065?
Upgrade typo3/cms to a fixed version for your release line: 10.4.2 or 9.5.17.
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-2020-11065 being exploited?
There is no known exploitation of CVE-2020-11065 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
- CVE-2011-3583 Typo3 SQL injection due to faulty prepared statements
- CVE-2011-4628 Typo3 Authentication Bypass
- CVE-2023-24814 Persisted Cross-Site Scripting in Frontend Rendering in typo3
- CVE-2021-41113 Cross-Site-Request-Forgery in Backend URI Handling in Typo3
Sources
Also known as BIT-typo3-2020-11065, GHSA-4j77-gg36-9864.