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Critical 9.4Published Sep 4, 2026
CVE-2026-52777YesWiki: Authenticated PHP Object Injection in BazarImportAction via unserialize
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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YesWiki is a wiki system written in PHP. Prior to version 4.6.6, there is an authenticated PHP object injection vulnerability in BazarImportAction via unserialize. This issue has been patched in version 4.6.6.
- CVSS
- 9.4 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- Weakness (CWE)
- CWE-352, CWE-502
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Sep 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
YesWiki yeswiki yeswiki:yeswiki (from the name) | before 4.6.6 | CNA record |
References
- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-9369-69wj-7m2fx-refsource-confirm
- https://github.com/YesWiki/yeswiki/commit/8f70a8d6b8befa0e644d03c785701dbbc55b8fd0x-refsource-misc
- https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.