# CVE-2014-0123: Moodle does not properly restrict access

> Authenticated students can bypass access controls to view and edit other users' wikis via the Recent Activity block.

- **Severity:** Medium 4.9 (`AV:N/AC:M/Au:S/C:P/I:P/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:** 22 Mar 2014
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-2vhr-4mhq-m35c

## What is CVE-2014-0123?

CVE-2014-0123 is a medium-severity missing authorization vulnerability in Moodle Moodle, published on 22 Mar 2014. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The wiki subsystem in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x before 2.5.5, and 2.6.x before 2.6.2 does not properly restrict (1) view and (2) edit access, which allows remote authenticated users to perform wiki operations by leveraging the student role and using the Recent Activity block to reach the individual wiki of an arbitrary student.

Weakness: CWE-264

## Which versions are affected by CVE-2014-0123?

6 open source packages ship an affected version, including moodle/moodle. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `moodle/moodle` | Packagist | All versions | 2.4.9 |
| `moodle/moodle` | Packagist | All versions | 2.4.9 |
| `moodle/moodle` | Packagist | From 2.5.0 | 2.5.5 |
| `moodle/moodle` | Packagist | From 2.5.0 | 2.5.5 |
| `moodle/moodle` | Packagist | From 2.6.0 | 2.6.2 |
| `moodle/moodle` | Packagist | From 2.6.0 | 2.6.2 |

Products: Moodle Moodle.

## How do I fix CVE-2014-0123?

Upgrade moodle/moodle to a fixed version for your release line: 2.4.9, 2.5.5 or 2.6.2.

## Is CVE-2014-0123 being exploited?

There is no known exploitation of CVE-2014-0123 in the wild and no public exploit code.

## Other vulnerabilities in Moodle Moodle

- [CVE-2006-4935](https://insights.sbomify.com/CVE-2006-4935/): File upload in n/a (critical 10.0)
- [CVE-2006-4936](https://insights.sbomify.com/CVE-2006-4936/): Moodle does not properly validate module instance id (critical 10.0)
- [CVE-2004-2233](https://insights.sbomify.com/CVE-2004-2233/): Unknown "front page vulnerability with Moodle servers" for Moodle before 1.3.2 has unknown impact and attack vectors. (critical 10.0)
- [CVE-2004-2235](https://insights.sbomify.com/CVE-2004-2235/): Cross-site scripting in n/a (critical 10.0)
- [CVE-2004-2236](https://insights.sbomify.com/CVE-2004-2236/): Other in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-0123 and fix it if it is affected.

What it is: CVE-2014-0123 is a medium-severity missing authorization vulnerability in Moodle Moodle, published on 22 Mar 2014. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2014-0123 in the wild and no public exploit code.

Affected packages and fixed versions:
- moodle/moodle (Packagist): affected all versions; fixed in 2.4.9
- moodle/moodle (Packagist): affected all versions; fixed in 2.4.9
- moodle/moodle (Packagist): affected from 2.5.0; fixed in 2.5.5
- moodle/moodle (Packagist): affected from 2.5.0; fixed in 2.5.5
- moodle/moodle (Packagist): affected from 2.6.0; fixed in 2.6.2
- moodle/moodle (Packagist): affected from 2.6.0; fixed in 2.6.2

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-2014-0123/ (Markdown: https://insights.sbomify.com/CVE-2014-0123/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-0123
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-0123
- OSV: https://osv.dev/vulnerability/CVE-2014-0123

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-0123/
Summaries are generated and may contain mistakes; the official description above is the record.