# CVE-2018-20962: Backpack\CRUD for Laravel XSS Vulnerability

Source: https://junglewise.ai/threats/cve-2018-20962-backpack-crud-for-laravel-xss-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-05-24  
License: CC BY 4.0 with a link back

CVE-2018-20962 · Severity: low · CVSS 3 · Published 2022-05-24

Backpack\CRUD for Laravel XSS Vulnerability

Technologies: [backpack/crud (Packagist)](https://junglewise.ai/threats/technologies/backpack-crud). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2018-20962 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2018-20962 being exploited in the wild.

**How severe is CVE-2018-20962?** Low severity, with a CVSS score of 3, published 24 May 2022.

**Which products and versions are affected?** backpack/crud (Packagist) ECOSYSTEM:introduced=0,fixed=3.4.9.

**Is there a fix for CVE-2018-20962?** Yes. backpack/crud (Packagist): upgrade to 3.4.9 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2018-20962?** Check whether you run backpack/crud (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- backpack/crud (Packagist): upgrade to 3.4.9 or later

  ```sh
  composer require backpack/crud:^3.4.9
  ```


## Affected products

- backpack/crud (Packagist) ECOSYSTEM:introduced=0,fixed=3.4.9

## Identifiers

- CVE-2018-20962
- GHSA-6gfm-gpr3-8wh9

## Related threats

- [Laravel Backpack CRUD authorization bypass in HasMany/MorphMany relations](https://junglewise.ai/threats/cve-2026-57570-laravel-backpack-crud-authorization-bypass-in-hasmany-morphmany)
- [Laravel Backpack CRUD OS command injection in Stats::makeCurlRequest](https://junglewise.ai/threats/cve-2026-54182-laravel-backpack-crud-os-command-injection-in-stats)
- [Laravel Backpack CRUD stored XSS in color column](https://junglewise.ai/threats/cve-2026-54181-laravel-backpack-crud-stored-xss-in-color-column)
- [Laravel Backpack CRUD authorization bypass in write operations](https://junglewise.ai/threats/cve-2026-54180-laravel-backpack-crud-authorization-bypass-in-write-operations)
- [Laravel Backpack CRUD arbitrary file deletion in HasUploadFields](https://junglewise.ai/threats/cve-2026-54178-laravel-backpack-crud-arbitrary-file-deletion-in-hasuploadfields)