Vulnerability identifier: #VU28002
Vulnerability risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-79
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
python-markdown2
Web applications /
Modules and components for CMS
Vendor: Trent Mick
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in "link text". 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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
python-markdown2: 1.0.1.17 - 2.3.8
External links
http://snyk.io/vuln/SNYK-PYTHON-MARKDOWN2-568905
http://github.com/trentm/python-markdown2/pull/350/commits/5db3e6e92a51ad8a98c73411962ecbe96c9a737e
http://github.com/trentm/python-markdown2/issues/341
http://github.com/trentm/python-markdown2/pull/350
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.