CVE-2026-52777
Published:September 04, 2026
Updated:September 22, 2026
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.
Affected Packages
https://github.com/YesWiki/yeswiki.git (GITHUB):
Affected version(s) >=v4.1.0 <v4.6.6Fix Suggestion:
Update to version v4.6.6yeswiki/yeswiki (PHP):
Affected version(s) >=dev-aceditor-fix <v4.6.6Fix Suggestion:
Update to version v4.6.6yeswiki/yeswiki (PHP):
Affected version(s) >=dev-aceditor-fix <v4.6.6Fix Suggestion:
Update to version v4.6.6Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
9.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
EPSS
Base Score:
0.21