CVE-2021-43808
CVSS V2 Medium 4.3
CVSS V3 Medium 6.1
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.
Overview
- CVE ID
- CVE-2021-43808
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-08T00:15:07
- Last Modified Date
- 2022-08-09T13:17:13
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:laravel:framework:*:*:*:*:*:*:*:* | 1 | OR | 6.20.42 | |
| cpe:2.3:a:laravel:framework:*:*:*:*:*:*:*:* | 1 | OR | 7.0.0 | 7.30.6 |
| cpe:2.3:a:laravel:framework:*:*:*:*:*:*:*:* | 1 | OR | 8.0.0 | 8.75.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 6.1
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 2.7
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/laravel/framework/releases/tag/v6.20.42 | Release Notes Third Party Advisory |
| https://github.com/laravel/framework/commit/b8174169b1807f36de1837751599e2828ceddb9b | Patch Third Party Advisory |
| https://github.com/laravel/framework/pull/39909 | Patch Third Party Advisory |
| https://github.com/laravel/framework/pull/39908 | Patch Third Party Advisory |
| https://github.com/laravel/framework/security/advisories/GHSA-66hf-2p6w-jqfw | Exploit Third Party Advisory |
| https://github.com/laravel/framework/pull/39906 | Patch 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 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-43808 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43808 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:42:43 | Added to TrackCVE | |||
| 2022-12-06 03:15:27 | 2021-12-08T00:15Z | 2021-12-08T00:15:07 | CVE Published Date | updated |
| 2022-12-06 03:15:27 | 2022-08-09T13:17:13 | CVE Modified Date | updated | |
| 2022-12-06 03:15:27 | Analyzed | Vulnerability Status | updated |