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CVE-2015-5956

Date: September 16, 2015

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.

Language: PHP

Severity Score

Related Resources (9)

https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2015-5956.yaml
http://www.securitytracker.com/id/1033551
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
https://nvd.nist.gov/vuln/detail/CVE-2015-5956
https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2015-009/
https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2015-009
https://www.mend.io/vulnerability-database/CVE-2015-5956

Severity Score

Weakness Type (CWE)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-79

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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