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Medium, CVSS 6.1

Laravel does not properly constrain the host portion of a password-reset URL

CVE-2017-9303GHSA-rc8x-jrrc-frfv

What to do

Partial vendor fix. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • Packagist laravel/laravel

    Affected
    >= 5.4.0, < 5.4.22
    Fixed in
    5.4.22

  • Packagist laravel/framework

    Affected
    >= 5.3.0, <= 5.3.31>= 5.4.0, < 5.4.22
    Fixed in
    5.4.22

  • Packagist illuminate/auth

    Affected
    >= 5.3.0, <= 5.3.31>= 5.4.0, < 5.4.22
    Fixed in
    5.4.22

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
6.1 · CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
  • CVE-2017-9303: 0.96% estimated exploitation activity in the next 30 days; percentile 61.54 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Laravel 5.4.x before 5.4.22 does not properly constrain the host portion of a password-reset URL, which makes it easier for remote attackers to conduct phishing attacks by specifying an attacker-controlled host.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-rc8x-jrrc-frfv

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2017-9303

Advisory: Laravel does not properly constrain the host portion of a password-reset URL
IDs: CVE-2017-9303, GHSA-rc8x-jrrc-frfv
Record: https://patchnext.com/advisories/cve-2017-9303 (revision 1, source checked 26 Oct 2026, 14:21 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Partial vendor fix; fixed versions by package: laravel/laravel 5.4.22; laravel/framework 5.4.22; illuminate/auth 5.4.22. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist laravel/laravel: affected >= 5.4.0, < 5.4.22; fixed in 5.4.22
- Packagist laravel/framework: affected >= 5.3.0, <= 5.3.31; >= 5.4.0, < 5.4.22; fixed in 5.4.22
- Packagist illuminate/auth: affected >= 5.3.0, <= 5.3.31; >= 5.4.0, < 5.4.22; fixed in 5.4.22

## Suggested inspection (read-only)
- Packagist laravel/laravel: check the installed version with your package manager.
- Packagist laravel/framework: check the installed version with your package manager.
- Packagist illuminate/auth: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on laravel/laravel, laravel/framework, illuminate/auth.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-rc8x-jrrc-frfv (GitHub-reviewed advisory GHSA-rc8x-jrrc-frfv lists affected ranges: Packagist laravel/laravel >=5.4.0 =5.3.0 =5.4.0 =5.3.0 =5.4.0 <5.4.22)

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