CVE-2026-52778
CVE-2026-52778
YesWiki is a wiki system written in PHP. Prior to version 4.6.6, an unsafe execution vulnerability exists in the Bazar form field calculator (CalcField.php) of YesWiki. The application attempts to sanitize user-defined mathematical formula…
Vulnerability class: RCE (Remote Code Execution)
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-52778?
- CVE-2026-52778 is a critical-severity vulnerability, classified under Code Injection. CVSS score: 9.8/10. Published 2026-06-08.
- How severe is CVE-2026-52778?
- Critical severity. CVSS v3 base score is 9.8 out of 10.