How severe is GHSA-cq88-842x-2jhp?

No CVSS score has been assigned to GHSA-cq88-842x-2jhp yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-cq88-842x-2jhp?

GHSA-cq88-842x-2jhp affects the following packages: miniflux.app/v2 (Go). Ecosystems affected: Go.

How do I fix GHSA-cq88-842x-2jhp?

Update miniflux.app/v2 to 2.2.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cq88-842x-2jhp is resolved across your whole dependency graph.

How do I detect GHSA-cq88-842x-2jhp in my Go dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for miniflux.app/v2. 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.

How do I mitigate GHSA-cq88-842x-2jhp 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-cq88-842x-2jhp?

O3 pinpoints whether GHSA-cq88-842x-2jhp is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-cq88-842x-2jhp actively exploited in the wild?

No public exploit code has been indexed for GHSA-cq88-842x-2jhp 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-cq88-842x-2jhp?

GHSA-cq88-842x-2jhp has an EPSS (Exploit Prediction Scoring System) score of 0.4%, 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-cq88-842x-2jhp?

GHSA-cq88-842x-2jhp is classified as Cross-site Scripting (XSS) (CWE-79). 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-cq88-842x-2jhp published, and has it been updated?

GHSA-cq88-842x-2jhp was published on April 4, 2025 and was last updated on April 9, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐹 Go

GHSA-cq88-842x-2jhp

Miniflux Media Proxy vulnerable to Stored Cross-site Scripting due to improper Content-Security-Policy configuration

Also known asCVE-2025-31483GO-2025-3591

Published

Apr 4, 2025

Updated

Apr 9, 2025

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

EPSS Exploitation Probability

via FIRST.org ↗

0.4%probability of exploitation in next 30 days

Lower Risk28th percentile+0.25%

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.

Blast Radius

1 pkg affected

🐹miniflux.app/v2

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Summary

Due to a weak Content Security Policy on the /proxy/* route, an attacker can bypass the CSP of the media proxy and execute cross-site scripting when opening external images in a new tab/window.

Impact

A malicious feed added to Miniflux can execute arbitrary JavaScript in the user's browser when opening external resources, such as proxified images, in a new tab or window.

Mitigation

The CSP for the media proxy has been changed from default-src 'self' to default-src 'none'; form-action 'none'; sandbox;.

Upgrade to Miniflux >= 2.2.7

Credit

RyotaK (GMO Flatt Security Inc.) with takumi-san.ai

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`miniflux.app/v2`	all versions	2.2.7

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for miniflux.app/v2. 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 miniflux.app/v2 to 2.2.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cq88-842x-2jhp 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-cq88-842x-2jhp 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-cq88-842x-2jhp. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

## Summary Due to a weak Content Security Policy on the `/proxy/*` route, an attacker can bypass the CSP of the media proxy and execute cross-site scripting when opening external images in a new tab/window. ## Impact A malicious feed added to Miniflux can execute arbitrary JavaScript in the user's browser when opening external resources, such as proxified images, in a new tab or window. ## Mitigation The CSP for the media proxy has been changed from `default-src 'self'` to `default-src 'none'; form-action 'none'; sandbox;`. Upgrade to Miniflux >= 2.2.7 ## Credit [RyotaK](https://ryotak.

O3 Security · Impact-Aware SCA

Is GHSA-cq88-842x-2jhp in your dependencies?

O3 detects GHSA-cq88-842x-2jhp across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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