Typo3 Backend XSS Vulnerability
An Information Disclosure vulnerability in jumpUrl mechanism, used to track access on web pages and provided files, allows a remote attacker to read arbitrary files on a host.
The expected value of a mandatory hash secret, intended to invalidate such requests, is exposed to remote users allowing them to bypass access control by providing the correct value.
There's no authentication required to exploit this vulnerability. The vulnerability allows to read any file, the web server user account has access to.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | typo3/cms | >= 3.3.0, >= 4.0, < 4.0.12, >= 4.1.0, < 4.1.10, >= 4.2.0, < 4.2.6, = 4.3alpha1 | 4.0.12, 4.1.10, 4.2.6 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2009-0816
- https://web.archive.org/web/20210507104956/http://www.securitytracker.com/id?1021709
- http://typo3.org/teams/security/security-bulletins/typo3-sa-2009-002
- http://www.debian.org/security/2009/dsa-1720
- http://www.openwall.com/lists/oss-security/2009/02/10/6
- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
typo3/cms- Disclosed
- 02.05.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-jg55-3q6h-2ccf - CC BY 4.0
Vulnerability history: typo3/cms
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 188
- First → latest
- 09.2018 06.2024
- Without a fix
- 3
- Exploited in attacks
- 0
Severity breakdown
- Critical 6
- High 41
- Medium 128
- Low 13
Disclosures per year
- 2018: 2
- 2019: 0
- 2020: 13
- 2021: 15
- 2022: 85
- 2023: 1
- 2024: 72
- 2025: 0
- 2026: 0
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