Cross-site scripting in sanitize - CVE-2023-36823
Published: April 24, 2024
Vulnerability identifier: #VU88968
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2023-36823
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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 when parsing "style" elements. A remote attacker can 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.
Affected software
sanitize
Debian Linux
Ubuntu
ruby-sanitize (Ubuntu package)
ruby-sanitize (Debian package)
Debian Linux
Ubuntu
ruby-sanitize (Ubuntu package)
ruby-sanitize (Debian package)
How to mitigate CVE-2023-36823
Install updates from vendor's website.
sanitize - update to 6.0.2
ruby-sanitize (Ubuntu package) - addressed in versions 4.6.6-2.1~0.20.04.2, 6.0.0-1ubuntu0.1, 6.0.0-1.1ubuntu0.23.10.1
ruby-sanitize (Debian package) - addressed in versions 5.2.1-2+deb11u1, 6.0.0-1.1+deb12u1
ruby-sanitize (Ubuntu package) - addressed in versions 4.6.6-2.1~0.20.04.2, 6.0.0-1ubuntu0.1, 6.0.0-1.1ubuntu0.23.10.1
ruby-sanitize (Debian package) - addressed in versions 5.2.1-2+deb11u1, 6.0.0-1.1+deb12u1