CVE-2018-6905 Typo3 XSS Vulnerability
An attacker with admin privileges can inject malicious scripts via the site name configuration, leading to cross-site scripting attacks.
- 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-2018-6905?
CVE-2018-6905 is a medium-severity cross-site scripting vulnerability in Typo3 Typo3, published on 8 Apr 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The page module in TYPO3 before 8.7.11, and 9.1.0, has XSS via $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'], as demonstrated by an admin entering a crafted site name during the installation process.
Weakness: CWE-79
Which versions are affected by CVE-2018-6905?
2 open source packages ship an affected version, including typo3/cms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
typo3/cms Packagist | All versions | 9.2.0 |
typo3/cms Packagist | All versions | 9.2.0 |
Products include Typo3 Typo3.
How do I fix CVE-2018-6905?
Upgrade typo3/cms to 9.2.0 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-2018-6905 being exploited?
There is no known exploitation of CVE-2018-6905 in the wild and no public exploit code.
Public exploit code: 2 proofs of concept on GitHub.
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 GHSA-3w22-wrwx-2r75.