CVE-2026-52777 Details
Description
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.
A vulnerability allowing authenticated PHP object injection has been identified in YesWiki versions prior to 4.6.6. This issue resides in the BazarImportAction, where user-supplied data is improperly handled by the unserialize function, creating a potential for arbitrary object instantiation. The vulnerability can be exploited by wiki admins, as the import feature lacks adequate cross-site request forgery protection.
Users are advised to upgrade to YesWiki version 4.6.6 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 5, 2026CISA-ADP
Assessed Sep 8, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/YesWiki/yeswiki/commit/8f70a8d6b8befa0e644d03c785701dbbc55b8fd0 | [email protected] | Source CodeVendor |
| https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6 | [email protected] | Release NotesVendor |
| https://github.com/YesWiki/yeswiki/security/advisories/GHSA-9369-69wj-7m2f | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-352 | Cross-Site Request Forgery (CSRF) | [email protected] |
| CWE-502 | Deserialization of Untrusted Data | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| YesWiki | <= 4.5.3 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 8, 2026 | CVE Modified | CISA-ADP |
| Sep 5, 2026 | New CVE Received | [email protected] |