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🐘 Packagist

GHSA-97jm-g33h-f46g

MEDIUM

silverstripe/framework ReadOnly transformation for formfields exploitable

Published
May 23, 2024
Updated
Nov 28, 2024
Affected
4 pkgs
Patched
4 / 4
Exploits
None indexed

Blast Radius

4 pkgs affected
🐘silverstripe/framework🐘silverstripe/framework🐘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

Form fields returning isReadonly() as true are vulnerable to reflected XSS injections. This includes ReadonlyField, LookupField, HTMLReadonlyField, as well as special purpose fields like TimeField_Readonly. Values submitted to through these form fields are not filtered out from the form session data, and might be shown to the user depending on the form behaviour. For example, form validation errors cause the form to re-render with previously submitted values by default.

SilverStripe forms automatically load values from request data (GET and POST), which enables malicious use of URLs if your form uses these fields and doesn't overwrite data on form construction.

Readonly and disabled form fields are already filtered out in Form->saveInto(), so maliciously submitted data on these fields doesn't make it into the database unless you are accessing form values directly in your saving logic.

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistsilverstripe/frameworkall versions3.1.21
🐘Packagistsilverstripe/framework3.2.0&&< 3.2.63.2.6
🐘Packagistsilverstripe/framework3.3.0&&< 3.3.43.3.4
🐘Packagistsilverstripe/framework3.4.0&&< 3.4.23.4.2

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. 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.

  2. Fix

    Update silverstripe/framework to 3.1.21 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-97jm-g33h-f46g 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-97jm-g33h-f46g 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-97jm-g33h-f46g. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Form fields returning isReadonly() as true are vulnerable to reflected XSS injections. This includes ReadonlyField, LookupField, HTMLReadonlyField, as well as special purpose fields like TimeField_Readonly. Values submitted to through these form fields are not filtered out from the form session data, and might be shown to the user depending on the form behaviour. For example, form validation errors cause the form to re-render with previously submitted values by default. SilverStripe forms automatically load values from request data (GET and POST), which enables malicious use of URLs if your f
O3 Security · Impact-Aware SCA

Is GHSA-97jm-g33h-f46g in your dependencies?

O3 detects GHSA-97jm-g33h-f46g across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.