TYPO3 cross-site scripting (XSS)
The sanitizeLocalUrl function in TYPO3 6.x before 6.2.15, 7.x before 7.4.0, 4.5.40, and earlier allows remote authenticated users to bypass the XSS filter and conduct cross-site scripting (XSS) attacks via a base64 encoded data URI, as demonstrated by the (1) returnUrl parameter to show_rechis.php and the (2) redirect_url parameter to index.php.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | typo3/cms | >= 6.0, < 6.2.15, >= 7.0, < 7.4.0, >= 4.0, <= 4.5.40 | 6.2.15, 7.4.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2015-5956
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2015-5956.yaml
- https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2015-009
- http://packetstormsecurity.com/files/133551/Typo3-CMS-6.2.14-4.5.40-Cross-Site-Scripting.html
- http://seclists.org/fulldisclosure/2015/Sep/57
- http://www.securityfocus.com/archive/1/536464/100/0/threaded
- http://www.securitytracker.com/id/1033551
- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
typo3/cms- Disclosed
- 14.05.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-989h-wv8x-933p - 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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TYPO3 cross-site scripting (XSS) this entry
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