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MEDIUM severity

silverstripe/framework's URL parameters `isDev` and `isTest` unguardedGHSA-55qg-6c4m-mw6g

MEDIUMFix: silverstripe/silverstripe-framework@d935140

GHSA-55qg-6c4m-mw6g is a medium-severity (CVSS 6.5) vulnerability in silverstripe/framework. A fix is available for silverstripe/framework — see the affected versions and patch details below.

Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Dec 2, 2024 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

2 pkgs affected
🐘silverstripe/framework🐘silverstripe/framework

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

The URL parameters isDev and isTest are accessible to unauthenticated users who access a SilverStripe website or application. This allows unauthorised users to expose information that is usually hidden on production environments such as verbose errors (including backtraces) and other debugging tools only available to sites running in "dev mode". Core functionality does not expose user data through these methods. Depending on your website configuration, community modules might have added more specific functionality which can be used to either access or alter user data.

We have fixed the usage of isDev and isTest in SilverStripe 4.x, and removed the URL parameters in the next major release of SilverStripe.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistsilverstripe/framework≥ 4.0.0-rc1&&< 4.0.44.0.4composer require silverstripe/framework:^4.0.4
🐘Packagistsilverstripe/framework≥ 4.1.0rc1&&< 4.1.14.1.1composer require silverstripe/framework:^4.1.1

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for silverstripe/framework, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update silverstripe/framework to 4.0.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-55qg-6c4m-mw6g is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

The URL parameters `isDev` and `isTest` are accessible to unauthenticated users who access a SilverStripe website or application. This allows unauthorised users to expose information that is usually hidden on production environments such as verbose errors (including backtraces) and other debugging tools only available to sites running in "dev mode". Core functionality does not expose user data through these methods. Depending on your website configuration, community modules might have added more specific functionality which can be used to either access or alter user data. We have fixed the us
O3 Security · Impact-Aware SCA

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silverstripe/framework's URL parameters `isDev` and…