GHSA-f6rx-hf55-4255 — sulu/sulu
Fix: sulu/sulu@02f52fcGHSA-f6rx-hf55-4255 is a XML External Entity (XXE) vulnerability in sulu/sulu. A fix is available for sulu/sulu — see the affected versions and patch details below.
Sulu vulnerable to XXE in SVG File upload Inspector
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- A successful exploit gives an attacker total control of the affected component, not partial access.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for GHSA-f6rx-hf55-4255.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Real-World Exposure
sulu/sulu🐘sulu/sulu🐘sulu/suluReal-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
Impact
A admin user can upload SVG which may load external data via XML DOM library, specially this can be used for eventually reference none secure XML External Entity References.
Patches
The problem has not been patched yet. Users should upgrade to patched versions once they become available. Currently affected versions are:
- 2.6.9
- 2.5.25
- 3.0.0-alpha3
Workarounds
Patch the effect file src/Sulu/Bundle/MediaBundle/FileInspector/SvgFileInspector.php in sulu with:
-$dom->loadXML($svg, \LIBXML_NOENT | \LIBXML_DTDLOAD);
+$dom->loadXML($data, LIBXML_NONET);
References
- GitHub repository: https://github.com/sulu/sulu
- Vulnerable code: https://github.com/sulu/sulu/blob/2.6/src/Sulu/Bundle/MediaBundle/FileInspector/SvgFileInspector.php
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | sulu/sulu | ≥ 2.5.21&&< 2.5.25 | 2.5.25composer require sulu/sulu:^2.5.25 |
| 🐘Packagist | sulu/sulu | ≥ 2.6.5&&< 2.6.9 | 2.6.9composer require sulu/sulu:^2.6.9 |
| 🐘Packagist | sulu/sulu | ≥ 3.0.0-alpha1&&< 3.0.0-alpha3 | 3.0.0-alpha3composer require sulu/sulu:^3.0.0-alpha3 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for sulu/sulu, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update sulu/sulu to 2.5.25 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-f6rx-hf55-4255 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 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-f6rx-hf55-4255 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-f6rx-hf55-4255. 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-f6rx-hf55-4255 in your dependencies?
O3 Security finds GHSA-f6rx-hf55-4255 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.