YesWiki before 4.6.7 contains an algorithmic-complexity denial of service in the wakka.php formatter due to an O(n^2) markdown-link regex. Unauthenticated attackers can submit a small crafted body of bracket characters to the page-edit preview endpoint to pin PHP-FPM workers and saturate the pool.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 02 Oct 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | YesWiki before 4.6.7 contains an algorithmic-complexity denial of service in the wakka.php formatter due to an O(n^2) markdown-link regex. Unauthenticated attackers can submit a small crafted body of bracket characters to the page-edit preview endpoint to pin PHP-FPM workers and saturate the pool. | |
| Title | YesWiki before 4.6.7 ReDoS via wakka.php Edit-Preview Endpoint | |
| First Time appeared |
Yeswiki
Yeswiki yeswiki |
|
| Weaknesses | CWE-1333 | |
| CPEs | cpe:2.3:a:yeswiki:yeswiki:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Yeswiki
Yeswiki yeswiki |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-02T14:50:11.572Z
Reserved: 2026-10-02T00:53:58.504Z
Link: CVE-2026-104454
No data.
Status : Deferred
Published: 2026-10-02T12:17:17.160
Modified: 2026-10-02T12:17:17.277
Link: CVE-2026-104454
No data.
OpenCVE Enrichment
Updated: 2026-10-02T13:30:05Z
Weaknesses