Vulnerability record · CVE-2026-57621 · published 2 July 2026
CVE-2026-57621: Deserialization of untrusted data vulnerability
Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.
Description
Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
Track CVE-2026-57621 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2026-57621), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.