# CVE-2021-43808: php-laravel-framework: Laravel is a web application framework

CVE-2021-43808 is fixed in php-laravel-framework on 1 platform, first by DEBIAN-CVE-2021-43808, released December 8, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-43808
- Priority: Routine
- CVSS: 6.1 (medium)
- EPSS: 0.0083
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 8, 2021

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | php-laravel-framework Debian 12.15 (bookworm) | 6.20.14+dfsg-3 | [DEBIAN-CVE-2021-43808](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43808.md) | Dec 8, 2021 |
| Linux | php-laravel-framework Debian 13.5 (trixie) | 6.20.14+dfsg-3 | [DEBIAN-CVE-2021-43808](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43808.md) | Dec 8, 2021 |
| Linux | php-laravel-framework Debian 14 | 6.20.14+dfsg-3 | [DEBIAN-CVE-2021-43808](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43808.md) | Dec 8, 2021 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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