# CVE-2007-2637: MoinMoin Improper ACL handling for calendars and includes

> Remote attackers can bypass ACLs to read restricted calendar and include pages in MoinMoin Wiki.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:P/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 13 May 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-cmg7-xr2j-4r9v, PYSEC-2026-675

## What is CVE-2007-2637?

CVE-2007-2637 is a medium-severity missing authorization vulnerability in n/a, published on 13 May 2007. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

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

## Which versions are affected by CVE-2007-2637?

3 open source packages ship an affected version, including moin. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `moin` | PyPI | All versions | 1.5.8 |
| `moin` | PyPI | All versions | 1.5.8 |
| `moin` | PyPI | All versions | 1.5.8 |

Products: Moinmoin Moinmoin.

## How do I fix CVE-2007-2637?

Upgrade moin to 1.5.8 or later.

## Is CVE-2007-2637 being exploited?

There is no known exploitation of CVE-2007-2637 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2004-1463](https://insights.sbomify.com/CVE-2004-1463/): MoinMoin Improper Privilege Management (critical 10.0)
- [CVE-2004-1462](https://insights.sbomify.com/CVE-2004-1462/): MoinMoin Improper Access Control (high 7.5)
- [CVE-2004-0708](https://insights.sbomify.com/CVE-2004-0708/): MoinMoin allows administrative access (high 7.5)
- [CVE-2008-1937](https://insights.sbomify.com/CVE-2008-1937/): MoinMoin vulnerable to privilege escalation (medium 6.8)
- [CVE-2007-2423](https://insights.sbomify.com/CVE-2007-2423/): Cross-site scripting in n/a (medium 5.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-2637 and fix it if it is affected.

What it is: CVE-2007-2637 is a medium-severity missing authorization vulnerability in n/a, published on 13 May 2007. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2007-2637 in the wild and no public exploit code.

Affected packages and fixed versions:
- moin (PyPI): affected all versions; fixed in 1.5.8
- moin (PyPI): affected all versions; fixed in 1.5.8
- moin (PyPI): affected all versions; fixed in 1.5.8

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2007-2637/ (Markdown: https://insights.sbomify.com/CVE-2007-2637/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-2637
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-2637
- OSV: https://osv.dev/vulnerability/CVE-2007-2637

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-2637/
Summaries are generated and may contain mistakes; the official description above is the record.