CVE-2021-43808
Laravel Blade Cross-Site Scripting (XSS)
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.
INFO
Published Date :
Dec. 8, 2021, 12:15 a.m.
Last Modified :
Aug. 9, 2022, 1:17 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.7
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-43808 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-43808.
| URL | Resource |
|---|---|
| https://github.com/laravel/framework/commit/b8174169b1807f36de1837751599e2828ceddb9b | Patch Third Party Advisory |
| https://github.com/laravel/framework/pull/39906 | Patch Third Party Advisory |
| https://github.com/laravel/framework/pull/39908 | Patch Third Party Advisory |
| https://github.com/laravel/framework/pull/39909 | Patch Third Party Advisory |
| https://github.com/laravel/framework/releases/tag/v6.20.42 | Release Notes Third Party Advisory |
| https://github.com/laravel/framework/releases/tag/v7.30.6 | Release Notes Third Party Advisory |
| https://github.com/laravel/framework/releases/tag/v8.75.0 | Release Notes Third Party Advisory |
| https://github.com/laravel/framework/security/advisories/GHSA-66hf-2p6w-jqfw | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Набор скриптов для парсинга агрегаторов уязвимостей и выгрузки информации в YouTrack
Python
My application with Laravel 8 and Bootstrap for manipulating excel files - in progress
PHP Blade
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-43808 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-43808 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Aug. 09, 2022
Action Type Old Value New Value Added CWE NIST CWE-327 -
Initial Analysis by [email protected]
Dec. 08, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://github.com/laravel/framework/commit/b8174169b1807f36de1837751599e2828ceddb9b No Types Assigned https://github.com/laravel/framework/commit/b8174169b1807f36de1837751599e2828ceddb9b Patch, Third Party Advisory Changed Reference Type https://github.com/laravel/framework/pull/39906 No Types Assigned https://github.com/laravel/framework/pull/39906 Patch, Third Party Advisory Changed Reference Type https://github.com/laravel/framework/pull/39908 No Types Assigned https://github.com/laravel/framework/pull/39908 Patch, Third Party Advisory Changed Reference Type https://github.com/laravel/framework/pull/39909 No Types Assigned https://github.com/laravel/framework/pull/39909 Patch, Third Party Advisory Changed Reference Type https://github.com/laravel/framework/releases/tag/v6.20.42 No Types Assigned https://github.com/laravel/framework/releases/tag/v6.20.42 Release Notes, Third Party Advisory Changed Reference Type https://github.com/laravel/framework/releases/tag/v7.30.6 No Types Assigned https://github.com/laravel/framework/releases/tag/v7.30.6 Release Notes, Third Party Advisory Changed Reference Type https://github.com/laravel/framework/releases/tag/v8.75.0 No Types Assigned https://github.com/laravel/framework/releases/tag/v8.75.0 Release Notes, Third Party Advisory Changed Reference Type https://github.com/laravel/framework/security/advisories/GHSA-66hf-2p6w-jqfw No Types Assigned https://github.com/laravel/framework/security/advisories/GHSA-66hf-2p6w-jqfw Exploit, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:laravel:framework:*:*:*:*:*:*:*:* versions up to (excluding) 6.20.42 *cpe:2.3:a:laravel:framework:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.30.6 *cpe:2.3:a:laravel:framework:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.75.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-43808 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-43808
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.14 }} 0.01%
score
0.49980
percentile