Medium severity · published Apr 3, 2026
CVE-2026-26477
An issue in Dokuwiki v.2025-05-14b "Librarian" [56.2] allows a remote attacker to cause a denial of service via the media_upload_xhr() function in the media.php file
4.3
CVSS
0.5%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DO
DokuWiki · DokuWiki
2025-05-14b · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26477
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-26477
Exploit
https://github.com/Hebing123/cve/issues/94
Release Notes
https://github.com/dokuwiki/dokuwiki/releases/tag/release-2025-05-14b
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