# CVE-2019-25338: Dokuwiki 2018-04-22b - Username Enumeration

> Attackers can enumerate valid user accounts in DokuWiki by analyzing error responses from the password reset functionality.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Feb 2026
- **Updated:** 5 Mar 2026
- **Also known as:** GHSA-j2hg-vp99-659f, PYSEC-2026-57, UBUNTU-CVE-2019-25338

## What is CVE-2019-25338?

CVE-2019-25338 is a medium-severity vulnerability in Dokuwiki, published on 12 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

DokuWiki 2018-04-22b contains a username enumeration vulnerability in its password reset functionality that allows attackers to identify valid user accounts. Attackers can submit different usernames to the password reset endpoint and distinguish between existing and non-existing accounts by analyzing the server's error response messages.

Weakness: CWE-204 (Observable Response Discrepancy)

## Which versions are affected by CVE-2019-25338?

1 open source package ship an affected version, including dokuwiki. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `dokuwiki` | PyPI | All versions to 2018-04-22b | None |

Products: Dokuwiki Dokuwiki.

## How do I fix CVE-2019-25338?

No fix has been published for CVE-2019-25338 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-25338 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25338 exists.

## Other vulnerabilities in Dokuwiki

- [CVE-2018-15474](https://insights.sbomify.com/CVE-2018-15474/): Code injection in n/a (critical 9.6)
- [CVE-2009-1960](https://insights.sbomify.com/CVE-2009-1960/): Code injection in n/a (critical 9.3)
- [CVE-2016-7964](https://insights.sbomify.com/CVE-2016-7964/): Server-side request forgery in n/a (high 8.6)
- [CVE-2010-0288](https://insights.sbomify.com/CVE-2010-0288/): Missing authorization in n/a (high 7.5)
- [CVE-2010-0289](https://insights.sbomify.com/CVE-2010-0289/): Cross-site request forgery in n/a (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-25338 and fix it if it is affected.

What it is: CVE-2019-25338 is a medium-severity vulnerability in Dokuwiki, published on 12 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25338 exists.

Affected packages and fixed versions:
- dokuwiki (PyPI): affected all versions up to 2018-04-22b; no fix listed

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-2019-25338/ (Markdown: https://insights.sbomify.com/CVE-2019-25338/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-25338
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-25338
- OSV: https://osv.dev/vulnerability/CVE-2019-25338

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-25338/
Summaries are generated and may contain mistakes; the official description above is the record.