CVE-2019-25338: DokuWiki 2018-04-22b contains a username enumeration vulnerability in its password reset functionality that al

This week

MEDIUM 5.3REMOTEDOWNGRADE

CVE-2019-25338 is a medium-severity flaw (CVSS 5.3) affecting dokuwiki. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-204
Published	2026-02-12
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: dokuwiki

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-12 23:16 UTCPublished CVE record published
2026-06-17 02:32 UTCUpdated Record last modified

dokuwiki dokuwiki DOWNGRADE

Affected: 2018-04-22b

Fixed in: no fixed release known

Safe to downgrade to: a release before 2018-04-22b

1. Check installed version

apt-cache policy dokuwiki || rpm -q dokuwiki || dokuwiki --version

2. No fixed release: DOWNGRADE to a release before 2018-04-22b (Debian / Ubuntu)

apt-cache madison dokuwiki sudo apt install dokuwiki=<VERSION_BEFORE_2018-04-22b> sudo apt-mark hold dokuwiki

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list dokuwiki sudo dnf downgrade dokuwiki-<VERSION_BEFORE_2018-04-22b> sudo dnf versionlock add dokuwiki

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-25338?

dokuwiki: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-25338 being exploited?

CVE-2019-25338 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-25338 affect?

CVE-2019-25338 affects dokuwiki. Severity is medium (CVSS 5.3). 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 distin

How urgent is CVE-2019-25338?

Priority 39/100. Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-26477 MEDIUM 4.3 DOWNGRADE An issue in Dokuwiki v.2025-05-14b "Librarian" [56.2] allows a remote attacker to cause a denial of service vi
CVE-2023-34408 MEDIUM 5.4 UPGRADE DokuWiki before 2023-04-04a allows XSS via RSS titles.
CVE-2022-3123 MEDIUM 6.1 UPGRADE MITIGATE Cross-site Scripting (XSS) - Reflected in GitHub repository splitbrain/dokuwiki prior to 2022-07-31a.
CVE-2022-28919 MEDIUM 6.1 DOWNGRADE MITIGATE HTMLCreator release_stable_2020-07-29 was discovered to contain a cross-site scripting (XSS) vulnerability via
CVE-2018-15474 CRITICAL 9.6 UPGRADE CSV Injection (aka Excel Macro Injection or Formula Injection) in /lib/plugins/usermanager/admin.php in DokuWi

References

← Back to latest CVEs