How severe is GHSA-33m5-hqp9-97pw?

No CVSS score has been assigned to GHSA-33m5-hqp9-97pw yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-33m5-hqp9-97pw?

GHSA-33m5-hqp9-97pw affects the following packages: craftcms/cms (Packagist). Ecosystems affected: Packagist.

How do I fix GHSA-33m5-hqp9-97pw?

Update craftcms/cms to 5.9.18 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-33m5-hqp9-97pw is resolved across your whole dependency graph.

How do I detect GHSA-33m5-hqp9-97pw in my Packagist dependencies?

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

How do I mitigate GHSA-33m5-hqp9-97pw if there is no patch (or I can't update yet)?

Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Is GHSA-33m5-hqp9-97pw actively exploited in the wild?

No public exploit code has been indexed for GHSA-33m5-hqp9-97pw 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-33m5-hqp9-97pw?

GHSA-33m5-hqp9-97pw has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 27th 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-33m5-hqp9-97pw?

GHSA-33m5-hqp9-97pw is classified as CWE-862 (CWE-862). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-33m5-hqp9-97pw published, and has it been updated?

GHSA-33m5-hqp9-97pw was published on May 6, 2026 and was last updated on May 13, 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

Craft CMS's Missing Volume Permission Check in AssetsController::actionShowInFolder Allows Information DisclosureGHSA-33m5-hqp9-97pw

Fix: craftcms/cms@e3f3eaa

GHSA-33m5-hqp9-97pw is a CWE-862 vulnerability in craftcms/cms. A fix is available for craftcms/cms — see the affected versions and patch details below.

Also known asCVE-2026-44012

Published

May 6, 2026

Updated

May 13, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

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-33m5-hqp9-97pw.

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs27th percentile — riskier than 27% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐘craftcms/cms

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

Summary

AssetsController::actionShowInFolder() fetches an asset by ID and returns its filename and complete folder hierarchy (including volume handle, volume UID, folder names, folder UIDs, and folder URI paths) without checking whether the requesting user has viewAssets or viewPeerAssets permission on the asset’s volume. Any authenticated CP user — even one with zero volume permissions — can enumerate asset filenames and the full folder structure of any volume by supplying arbitrary asset IDs.

This follows the exact same incomplete-patch pattern as four GHSAs merged on 2026-02-25 (GHSA-x76w-8c62-48mg, GHSA-vgjg-248p-rfm2, GHSA-5pgf-h923-m958, GHSA-3pvf-vxrv-hh9c), all of which added requireVolumePermissionByAsset() + requirePeerVolumePermissionByAsset() to sibling AssetsController actions. The actionShowInFolder method was introduced thirteen days before the patch wave and was not included in it.

Details

The vulnerability is in src/controllers/AssetsController.php at line 1437. The method:

Calls requireCpRequest() — verifies the request targets the CP, enforces accessCp permission via Controller::_enforceAllowAnonymous(), but does NOT enforce any volume-level permission.
Fetches any asset by ID with Asset::findOne($assetId) — no editable/savable scope filter, so all assets across all volumes are reachable.
Returns sensitive structural data via JSON.

Impact

Any authenticated control panel user with only accessCp permission can discover the filenames and complete folder structure (names, UIDs, handles, URIs) of assets in volumes they are not authorized to access.
Sensitive volume structures — private document repositories, confidential media, internal file names — are exposed to any user who can log into the control panel.
This enables targeted follow-up attacks: an attacker who knows a private asset’s filename and folder path may have other avenues to exfiltrate the actual file.

Resources

https://github.com/craftcms/cms/commit/e3f3eaab3d85badd713cfc2c24e5f0792ecdb586

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`craftcms/cms`	≥ 5.0.0-RC1&&< 5.9.18	5.9.18`composer require craftcms/cms:^5.9.18`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for craftcms/cms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update craftcms/cms to 5.9.18 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-33m5-hqp9-97pw is resolved across your whole dependency graph.
Workarounds
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

## Summary `AssetsController::actionShowInFolder()` fetches an asset by ID and returns its filename and complete folder hierarchy (including volume handle, volume UID, folder names, folder UIDs, and folder URI paths) without checking whether the requesting user has `viewAssets` or `viewPeerAssets` permission on the asset’s volume. Any authenticated CP user — even one with zero volume permissions — can enumerate asset filenames and the full folder structure of any volume by supplying arbitrary asset IDs. This follows the exact same incomplete-patch pattern as four GHSAs merged on 2026-02-25 (

O3 Security · Impact-Aware SCA

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