#VU82996 Cross-site scripting in Symfony - CVE-2023-46734
Published: November 13, 2023 / Updated: November 13, 2023
Vulnerability identifier: #VU82996
Vulnerability risk: Low
CVSSv4.0: 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/E:U/U:Clear
CVE-ID: CVE-2023-46734
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Symfony
Symfony
Software vendor:
SensioLabs
SensioLabs
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 CodeExtension filters. 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.
Remediation
Install updates from vendor's website.
External links
- https://github.com/symfony/symfony/security/advisories/GHSA-q847-2q57-wmr3
- https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54
- https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c
- https://github.com/symfony/symfony/releases/tag/v4.4.51
- https://github.com/symfony/symfony/releases/tag/v5.4.31
- https://github.com/symfony/symfony/releases/tag/v6.3.8