CVE-2026-104449
8.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
Summary
YesWiki before 4.6.7 contains an access control vulnerability allowing unauthenticated attackers to overwrite any existing wiki page, including pages whose write ACL restricts editing, via the Bazar entry-creation flow. Attackers can submit a crafted entry with an attacker-controlled id_fiche matching an existing page, overwriting its body for mass defacement and content destruction.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| YesWiki | yeswiki | 0 < 4.6.7 | affected |
| YesWiki | yeswiki | 4.6.7 | unaffected |
Weaknesses
- CWE-639: Authorization Bypass Through User-Controlled Key
References
- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4388-phmh-jrw8
- https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-unauthenticated-page-overwrite-via-bazar-id-fiche
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