GHSA-mqjc-x563-c9q8
HIGHsilverstripe/framework CSV Excel Macro Injection
Blast Radius
silverstripe/framework🐘silverstripe/framework🐘silverstripe/frameworkReal-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
In the CSV export feature of the CMS it's possible for the output to contain macros and scripts, which if imported without sanitisation into software (including Microsoft Excel) may be executed.
In order to safeguard against this threat all potentially executable cell values exported from CSV will be prepended with a literal tab character.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | silverstripe/framework | ≥ 3.5.0-rc1&&< 3.5.6 | 3.5.6 |
| 🐘Packagist | silverstripe/framework | ≥ 3.6.0-rc1&&< 3.6.3 | 3.6.3 |
| 🐘Packagist | silverstripe/framework | ≥ 4.0.0-rc1&&< 4.0.1 | 4.0.1 |
Detection & mitigation playbook
Open-source dependencyDetect
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 3.5.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-mqjc-x563-c9q8 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-mqjc-x563-c9q8 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-mqjc-x563-c9q8. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-mqjc-x563-c9q8 in your dependencies?
O3 detects GHSA-mqjc-x563-c9q8 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.