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Indicator investigation
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Indicator
Type cve · source NVD CVE
Grouped attempts with latest status; expand for attempt history.
5 attempts · first 2026-09-05T01:27:40.686999Z · last 2026-09-05T09:44:23.368285Z
Not listed in CISA KEV (local)
Types: cisa_kev
5 attempts · first 2026-09-05T01:27:40.690165Z · last 2026-09-05T09:44:23.374185Z
YesWiki is a wiki system written in PHP. From version 4.6.2 to before version 4.6.6, HttpSignatureService::verifySignature() checks the result of PHP's openssl_verify() with a loose boolean negation - if (!openssl_verify(...)) { throw ... }. PHP's openssl_verify has four possible return values: 1, 0, -1, and "false". The -1 row is the bypass: PHP's truthiness rules make -1 a truthy value, so !(-1)
Types: nvd_local
High-signal pivots without leaving the thread you started in search.
Structured pivots from local graph context.
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