Cross-site scripting in Python - CVE-2011-4940
Published: June 27, 2012 / Updated: July 28, 2020
Vulnerability identifier: #VU32785
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2011-4940
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Python.org
Affected software:
Python
Python
Detailed vulnerability description
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via UTF-7 encoding. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
How to mitigate CVE-2011-4940
The vendor has issued the following versions to address this vulnerability: 2.6.7, 2.7.2.
Sources
- http://bugs.python.org/issue11442
- http://jvn.jp/en/jp/JVN51176027/index.html
- http://jvndb.jvn.jp/jvndb/JVNDB-2012-000063
- http://secunia.com/advisories/50858
- http://secunia.com/advisories/51024
- http://secunia.com/advisories/51040
- http://www.securityfocus.com/bid/54083
- http://www.ubuntu.com/usn/USN-1592-1
- http://www.ubuntu.com/usn/USN-1596-1
- http://www.ubuntu.com/usn/USN-1613-1
- http://www.ubuntu.com/usn/USN-1613-2
- https://bugzilla.redhat.com/show_bug.cgi?id=803500