CVE-2026-52770: YesWiki: SQL Injection possible through public Bazar entry-listing APIs via numeric `query`/`queries` filters

July 9, 2026

YesWiki’s public Bazar entry-listing APIs are vulnerable to unauthenticated SQL injection in numeric query / queries filters.

For Bazar fields whose value structure is numeric, YesWiki escapes the attacker-controlled filter value but inserts it into SQL without quotes or numeric validation. An unauthenticated attacker can inject boolean SQL expressions and infer database contents from whether entries are returned.

References

github.com/YesWiki/yeswiki/commit/f3b0dd093a7ace47dc29a515faeb02635baceae2
github.com/YesWiki/yeswiki/security/advisories/GHSA-qg78-vmvc-fhjw
github.com/advisories/GHSA-qg78-vmvc-fhjw
nvd.nist.gov/vuln/detail/CVE-2026-52770

Code Behaviors & Features

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