Account enumeration via divergent password-reset errors
Published Feb 12, 2026 · Updated Feb 12, 2026
Username enumeration in DokuWiki 2018-04-22b allows remote attackers to identify valid accounts through password-reset requests. The doku.php do=resendpwd flow returns a distinct user-not-found error for unknown names, while valid names proceed to mail handling and expose different errors. No authentication or user interaction is required, and the bounded impact is disclosure of which submitted usernames correspond to accounts.
Summary
What happened
Username enumeration in DokuWiki 2018-04-22b allows remote attackers to identify valid accounts through password-reset requests. The doku.php do=resendpwd flow returns a distinct user-not-found error for unknown names, while valid names proceed to mail handling and expose different errors. No authentication or user interaction is required, and the bounded impact is disclosure of which submitted usernames correspond to accounts.
The record
- CVE
- CVE-2019-25338
- Published
- Feb 12, 2026
- Updated
- Feb 12, 2026
- Vendor
- Andreas Gohr
- Product
- DokuWiki
- Classifications
- CWE-204, T1589.003
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 12, 2026CVE publishedPublication date reported by the CVE source.
- Feb 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2018-04-22b "Greebo"
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- DokuWiki 2018-04-22b username-enumeration proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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