SB2021120906 - Cross-site scripting in Laravel Framework
Published: December 9, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Cross-site scripting (CVE-ID: CVE-2021-43808)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
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 the parent.blade.php and child.blade.php scripts. 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 update from vendor's website.
References
- https://github.com/laravel/framework/releases/tag/v6.20.42
- https://github.com/laravel/framework/commit/b8174169b1807f36de1837751599e2828ceddb9b
- https://github.com/laravel/framework/pull/39909
- https://github.com/laravel/framework/pull/39908
- https://github.com/laravel/framework/security/advisories/GHSA-66hf-2p6w-jqfw
- https://github.com/laravel/framework/pull/39906
- https://github.com/laravel/framework/releases/tag/v7.30.6
- https://github.com/laravel/framework/releases/tag/v8.75.0