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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-43808 Detail

Description

Laravel is a web application framework. Laravel prior to versions 8.75.0, 7.30.6, and 6.20.42 contain a possible cross-site scripting (XSS) vulnerability in the Blade templating engine. A broken HTML element may be clicked and the user taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed. This vulnerability has been patched in versions 8.75.0, 7.30.6, and 6.20.42 by determining the parent placeholder at runtime and using a random hash that is unique to each request.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/laravel/framework/commit/b8174169b1807f36de1837751599e2828ceddb9b CVE, GitHub, Inc. Patch  Third Party Advisory 
https://github.com/laravel/framework/pull/39906 CVE, GitHub, Inc. Patch  Third Party Advisory 
https://github.com/laravel/framework/pull/39908 CVE, GitHub, Inc. Patch  Third Party Advisory 
https://github.com/laravel/framework/pull/39909 CVE, GitHub, Inc. Patch  Third Party Advisory 
https://github.com/laravel/framework/releases/tag/v6.20.42 CVE, GitHub, Inc. Release Notes  Third Party Advisory 
https://github.com/laravel/framework/releases/tag/v7.30.6 CVE, GitHub, Inc. Release Notes  Third Party Advisory 
https://github.com/laravel/framework/releases/tag/v8.75.0 CVE, GitHub, Inc. Release Notes  Third Party Advisory 
https://github.com/laravel/framework/security/advisories/GHSA-66hf-2p6w-jqfw CVE, GitHub, Inc. Exploit  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-327 Use of a Broken or Risky Cryptographic Algorithm cwe source acceptance level NIST  
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-43808
NVD Published Date:
12/07/2021
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.