CVE-2026-28176 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Booking Activities Team

Booking Activities

unaffected

Version	Status	Constraints
`n/a`	affected	≤ 1.18.4

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Update the WordPress Booking Activities plugin to the latest available version (at least 1.18.5).

Workaround

No workaround given by the vendor.

References

Link	Providers
https://patchstack.com/database/wordpress/plugin/booking-activities/vulnerability/wordpress-booking-activities-plugin-1-18-4-php-object-injection-vulnerability?_s_id=cve

History

Thu, 13 Aug 2026 14:00:00 +0000

Type	Values Removed	Values Added
Description		Unauthenticated PHP Object Injection in Booking Activities <= 1.18.4 versions.
Title		WordPress Booking Activities plugin <= 1.18.4 - PHP Object Injection vulnerability
Weaknesses		CWE-502
References		https://patchstack.com/database/wordpress/plugin/booking-activities/vulnerability/wordpress-booking-activities-plugin-1-18-4-php-object-injection-vulnerability?_s_id=cve
Metrics		cvssV3_1 `{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Patchstack

Published: 2026-08-13T13:36:35.072Z

Updated: 2026-08-13T15:19:08.760Z

Reserved: 2026-02-25T12:14:40.739Z

Link: CVE-2026-28176

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-13T14:16:59.663

Modified: 2026-08-13T14:16:59.663

Link: CVE-2026-28176

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-502

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