How severe is GHSA-cmg7-xr2j-4r9v?

No CVSS score has been assigned to GHSA-cmg7-xr2j-4r9v yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-cmg7-xr2j-4r9v?

GHSA-cmg7-xr2j-4r9v affects the following packages: moin (PyPI). Ecosystems affected: PyPI.

How do I fix GHSA-cmg7-xr2j-4r9v?

Update moin to 1.5.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cmg7-xr2j-4r9v is resolved across your whole dependency graph.

How do I detect GHSA-cmg7-xr2j-4r9v in my PyPI dependencies?

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

How do I mitigate GHSA-cmg7-xr2j-4r9v 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.

Is GHSA-cmg7-xr2j-4r9v actively exploited in the wild?

No public exploit code has been indexed for GHSA-cmg7-xr2j-4r9v 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-cmg7-xr2j-4r9v?

GHSA-cmg7-xr2j-4r9v has an EPSS (Exploit Prediction Scoring System) score of 1.5%, placing it in the 74th 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.

When was GHSA-cmg7-xr2j-4r9v published, and has it been updated?

GHSA-cmg7-xr2j-4r9v was published on May 1, 2022 and was last updated on July 6, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍 PyPI

Not in CISA KEV

MoinMoin Improper ACL handling for calendars and includesGHSA-cmg7-xr2j-4r9v

GHSA-cmg7-xr2j-4r9v is a security vulnerability in moin. A fix is available for moin — see the affected versions and patch details below.

Also known asCVE-2007-2637PYSEC-2026-675

Published

May 1, 2022

Updated

Jul 6, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

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

EPSS Exploitation Probability

via FIRST.org ↗

1.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs74th percentile — riskier than 74% of all scored CVEsHighest risk

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

Real-World Exposure

1 pkg affected

🐍moin

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

Description

MoinMoin before 20070507 does not properly enforce ACLs for calendars and includes, which allows remote attackers to read certain pages via unspecified vectors.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`moin`	all versions	1.5.8`pip install --upgrade 'moin==1.5.8'`

Affected Products

1 product · 1 configurations

Application

moinmoinmoinmoin

≤ 1.5.7

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for moin, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update moin to 1.5.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cmg7-xr2j-4r9v 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.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Ubuntu

USN-458-1Ubuntu

Frequently Asked Questions

MoinMoin before 20070507 does not properly enforce ACLs for calendars and includes, which allows remote attackers to read certain pages via unspecified vectors.

O3 Security · Impact-Aware SCA

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