How severe is GHSA-hwj7-4vgc-j3v9?

No CVSS score has been assigned to GHSA-hwj7-4vgc-j3v9 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-hwj7-4vgc-j3v9?

GHSA-hwj7-4vgc-j3v9 affects the following packages: craftcms/aws-s3 (Packagist). Ecosystems affected: Packagist.

How do I fix GHSA-hwj7-4vgc-j3v9?

Update craftcms/aws-s3 to 2.2.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hwj7-4vgc-j3v9 is resolved across your whole dependency graph.

How do I detect GHSA-hwj7-4vgc-j3v9 in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for craftcms/aws-s3, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-hwj7-4vgc-j3v9 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-hwj7-4vgc-j3v9?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-hwj7-4vgc-j3v9 can be triaged on real exposure rather than presence alone.

Is GHSA-hwj7-4vgc-j3v9 actively exploited in the wild?

No public exploit code has been indexed for GHSA-hwj7-4vgc-j3v9 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.

What is the EPSS score for GHSA-hwj7-4vgc-j3v9?

GHSA-hwj7-4vgc-j3v9 has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 28th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-hwj7-4vgc-j3v9?

GHSA-hwj7-4vgc-j3v9 is classified as Information Exposure (CWE-200). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-hwj7-4vgc-j3v9 published, and has it been updated?

GHSA-hwj7-4vgc-j3v9 was published on March 16, 2026 and was last updated on March 19, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘 Packagist

Not in CISA KEV

GHSA-hwj7-4vgc-j3v9 — craftcms/aws-s3

Fix: craftcms/aws-s3@ef8904d

GHSA-hwj7-4vgc-j3v9 is a Information Exposure vulnerability in craftcms/aws-s3. A fix is available for craftcms/aws-s3 — see the affected versions and patch details below.

Amazon S3 for Craft CMS has an Information Disclosure vulnerability

Also known asCVE-2026-32265

Published

Mar 16, 2026

Updated

Mar 19, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Sep 20, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

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.
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-hwj7-4vgc-j3v9.

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs28th percentile — riskier than 28% of all scored CVEsHighest risk

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

1 pkg affected

🐘craftcms/aws-s3

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

Unauthenticated users can view a list of buckets the plugin has access to.

The BucketsController->actionLoadBucketData() endpoint allows unauthenticated users with a valid CSRF token to view a list of buckets that the plugin is allowed to see.

Users should update to version 2.2.5 of the plugin to mitigate the issue.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`craftcms/aws-s3`	≥ 2.0.2&&< 2.2.5	2.2.5`composer require craftcms/aws-s3:^2.2.5`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for craftcms/aws-s3, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update craftcms/aws-s3 to 2.2.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hwj7-4vgc-j3v9 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-hwj7-4vgc-j3v9 can be triaged on real exposure rather than presence alone.

Tailored to GHSA-hwj7-4vgc-j3v9. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Unauthenticated users can view a list of buckets the plugin has access to. The `BucketsController->actionLoadBucketData()` endpoint allows unauthenticated users with a valid CSRF token to view a list of buckets that the plugin is allowed to see. Users should update to version 2.2.5 of the plugin to mitigate the issue.

O3 Security · Impact-Aware SCA

Is GHSA-hwj7-4vgc-j3v9 in your dependencies?

O3 Security finds GHSA-hwj7-4vgc-j3v9 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

Scan my dependencies How O3 SCA works