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TI-2026-21339 Aliases CVE-2026-26477GHSA-gwpq-c4hc-7qhj

Resource allocation without limits in DokuWiki

Priority HIGH 72CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-770.

Summary

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

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0046 40th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
DokuWikiDokuWiki2025-05-14b—No fix listedCNA
  • DokuWiki VendorDokuWiki Affected 2025-05-14b Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:dokuwiki:dokuwiki:2025-05-14b:*:*:*:*:*:*:*2025-05-14bVulnerableDokuWiki
  • cpe:2.3:a:dokuwiki:dokuwiki:2025-05-14b:*:*:*:*:*:*:* Versions 2025-05-14b Vulnerable ·DokuWiki

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26477
  2. 2026-10-03 Alias added: GHSA-gwpq-c4hc-7qhj

References

Exploit 1

Other 1

  • TI-2019-15392 Dokuwiki 2018-04-22b - Username Enumeration CVSS 4.0MEDIUM 6.9
  • TI-2009-01868 inc/init.php in DokuWiki 2009-02-14, rc2009-02-06, and rc2009-01-30, when… CVSS 2.0HIGH 9.3
  • TI-2023-17236 DokuWiki before 2023-04-04a allows XSS via RSS titles. CVSS 3.1MEDIUM 5.4
  • TI-2018-11034 CSV Injection (aka Excel Macro Injection or Formula Injection) in… CVSS 3.0CRITICAL 9.6
  • TI-2010-00275 A typo in the administrator permission check in the ACL Manager plugin… CVSS 2.0HIGH 7.5
  • TI-2017-13324 The call parameter of /lib/exe/ajax.php in DokuWiki through 2017-02-19e does not properly… CVSS 3.0HIGH 8.6
See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences