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MEDIUM severity

CVE-2023-41564 cockpit-hq/cockpit

MEDIUM

CVE-2023-41564 is a medium-severity (CVSS 6.1) Unrestricted File Upload vulnerability in cockpit-hq/cockpit. No vendor fix is recorded yet; mitigation options are listed below.

Cockpit CMS arbitrary file upload vulnerability

Also known asGHSA-38vf-35cg-m73w
Published
Sep 8, 2023
Updated
Aug 12, 2026
Affected
1 pkg
Patched
None yet
Exploits
None indexed
Exploitation data as of Sep 21, 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 CVE-2023-41564.

EPSS Exploitation Probability

via FIRST.org ↗
1.0%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs60th percentile — riskier than 60% 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.

How urgent is this, really

CVE-2023-41564 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 378,156 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected
🐘cockpit-hq/cockpit

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

An arbitrary file upload vulnerability in the Upload Asset function of Cockpit CMS v2.6.3 allows attackers to execute arbitrary code via uploading a crafted .shtml file.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐘Packagistcockpit-hq/cockpitall versionsNo fix

Detection & mitigation playbook

Open-source dependency
  1. Detect

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

  2. Remediation status

    No patched version of cockpit-hq/cockpit has shipped for CVE-2023-41564 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    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.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2023-41564 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2023-41564. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

An arbitrary file upload vulnerability in the Upload Asset function of Cockpit CMS v2.6.3 allows attackers to execute arbitrary code via uploading a crafted .shtml file.
O3 Security · Impact-Aware SCA

Is CVE-2023-41564 in your dependencies?

O3 Security finds CVE-2023-41564 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

CVE-2023-41564: cockpit RCE (Medium 6.1) | O3 Security