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CVE-2026-52762

YesWiki: Authenticated (Admin) Server-Side Template Injection to Remote Code Execution via Bazar Semantic Templates PUBLISHED

Description (CNA)

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki Bazar contains a stored Server-Side Template Injection (SSTI) vulnerability in the semantic template feature that can be escalated to confirmed Remote Code Execution (RCE). An authenticated administrator can place arbitrary Twig expressions into the Semantic template (Twig) field (bn_sem_template), and that content is later executed server-side when public semantic endpoints are requested. This issue has been patched in version 4.6.6.

Affected (CNA)

Vendor / productVersions
YesWiki / yeswikiaffected < 4.6.6

CWE

CWE-1336

References

ADP enrichment

CISA-ADP

No English description supplied.