What is CVE-2026-28176?

CVE-2026-28176 is a high-severity vulnerability in Booking Activities Team, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-08-13.

How severe is CVE-2026-28176?

High severity. CVSS v3 base score is 8.8 out of 10.

Deserialization in Booking Activities Team

CVE-2026-28176

Unauthenticated PHP Object Injection in Booking Activities <= 1.18.4 versions.

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Booking Activities Team — versions n/a

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-28176?: CVE-2026-28176 is a high-severity vulnerability in Booking Activities Team, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-08-13.
How severe is CVE-2026-28176?: High severity. CVSS v3 base score is 8.8 out of 10.