How severe is GHSA-m5q3-mvcr-gc5m?

GHSA-m5q3-mvcr-gc5m has a CVSS score of 7.5/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-m5q3-mvcr-gc5m?

GHSA-m5q3-mvcr-gc5m affects the following packages: silverstripe/framework (Packagist), silverstripe/framework (Packagist). Ecosystems affected: Packagist.

How do I fix GHSA-m5q3-mvcr-gc5m?

Update silverstripe/framework to 4.0.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-m5q3-mvcr-gc5m is resolved across your whole dependency graph.

How do I detect GHSA-m5q3-mvcr-gc5m in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for silverstripe/framework. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate GHSA-m5q3-mvcr-gc5m if there is no patch (or I can't update yet)?

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.

How does O3 Security protect against GHSA-m5q3-mvcr-gc5m?

O3 pinpoints whether GHSA-m5q3-mvcr-gc5m is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-m5q3-mvcr-gc5m actively exploited in the wild?

No public exploit code has been indexed for GHSA-m5q3-mvcr-gc5m yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-m5q3-mvcr-gc5m published, and has it been updated?

GHSA-m5q3-mvcr-gc5m was published on May 27, 2024 and was last updated on December 2, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘 Packagist

GHSA-m5q3-mvcr-gc5m

HIGH

silverstripe/framework BackURL validation bypass with malformed URLs

Published

May 27, 2024

Updated

Dec 2, 2024

Affected

2 pkgs

Patched

2 / 2

Exploits

None indexed

Blast Radius

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

A carefully constructed malformed URL can be used to circumvent the offsite redirection protection used on BackURL parameters. This could lead to users entering sensitive data in malicious websites instead of the intended one.

Affected Packages

2 total 2 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`silverstripe/framework`	≥ 4.0.0-rc1&&< 4.0.4	4.0.4
🐘Packagist	`silverstripe/framework`	≥ 4.1.0-rc1&&< 4.1.1	4.1.1

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for silverstripe/framework. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
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-m5q3-mvcr-gc5m is resolved across your whole dependency graph.
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.
How O3 protects you
O3 pinpoints whether GHSA-m5q3-mvcr-gc5m is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-m5q3-mvcr-gc5m. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A carefully constructed malformed URL can be used to circumvent the offsite redirection protection used on `BackURL` parameters. This could lead to users entering sensitive data in malicious websites instead of the intended one.

O3 Security · Impact-Aware SCA

Is GHSA-m5q3-mvcr-gc5m in your dependencies?

O3 detects GHSA-m5q3-mvcr-gc5m across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my dependencies How O3 SCA works