How severe is GHSA-q88g-qx42-xfrh?

No CVSS score has been assigned to GHSA-q88g-qx42-xfrh yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-q88g-qx42-xfrh?

GHSA-q88g-qx42-xfrh affects the following packages: bolt/core (Packagist). Ecosystems affected: Packagist.

How do I fix GHSA-q88g-qx42-xfrh?

Update bolt/core to 4.1.13 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-q88g-qx42-xfrh is resolved across your whole dependency graph.

How do I detect GHSA-q88g-qx42-xfrh in my Packagist dependencies?

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

How do I mitigate GHSA-q88g-qx42-xfrh if there is no patch (or I can't update yet)?

Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Is GHSA-q88g-qx42-xfrh actively exploited in the wild?

No public exploit code has been indexed for GHSA-q88g-qx42-xfrh 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-q88g-qx42-xfrh?

GHSA-q88g-qx42-xfrh has an EPSS (Exploit Prediction Scoring System) score of 1.7%, placing it in the 77th 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-q88g-qx42-xfrh?

GHSA-q88g-qx42-xfrh is classified as Path Traversal (CWE-22). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was GHSA-q88g-qx42-xfrh published, and has it been updated?

GHSA-q88g-qx42-xfrh was published on February 18, 2021 and was last updated on December 2, 2024. 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

Path traversal in bolt/coreGHSA-q88g-qx42-xfrh

Fix: bolt/core#2371

GHSA-q88g-qx42-xfrh is a Path Traversal vulnerability in bolt/core. A fix is available for bolt/core — see the affected versions and patch details below.

Also known asCVE-2021-27367

Published

Feb 18, 2021

Updated

Dec 2, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Oct 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

1.7%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs77th percentile — riskier than 77% of all scored CVEsHighest risk

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

Real-World Exposure

1 pkg affected

🐘bolt/core

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

Controller/Backend/FileEditController.php and Controller/Backend/FilemanagerController.php in Bolt before 4.1.13 allow Directory Traversal.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`bolt/core`	all versions	4.1.13`composer require bolt/core:^4.1.13`

Affected Products

1 product · 1 configurations

Application

boltboltcms

< 4.1.13

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for bolt/core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update bolt/core to 4.1.13 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-q88g-qx42-xfrh is resolved across your whole dependency graph.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

Controller/Backend/FileEditController.php and Controller/Backend/FilemanagerController.php in Bolt before 4.1.13 allow Directory Traversal.

O3 Security · Impact-Aware SCA

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