Unauthenticated object injection via booking metadata unserialization
Published Sep 30, 2026 · Updated Sep 30, 2026
PHP object injection in Booking Activities 1.18.7.1 and earlier allows remote attackers to inject objects through booking metadata. The plugin accepts serialized text values and unserializes PHP objects from the wp_bookacti_meta table without rejecting those objects. The entry point is unauthenticated, but the public advisory does not identify an exploit gadget or establish arbitrary code execution.
Summary
What happened
PHP object injection in Booking Activities 1.18.7.1 and earlier allows remote attackers to inject objects through booking metadata. The plugin accepts serialized text values and unserializes PHP objects from the wp_bookacti_meta table without rejecting those objects. The entry point is unauthenticated, but the public advisory does not identify an exploit gadget or establish arbitrary code execution.
The record
- CVE
- CVE-2026-97248
- Published
- Sep 30, 2026
- Updated
- Sep 30, 2026
- Vendor
- Booking Activities Team
- Product
- Booking Activities
- Classifications
- T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 30, 2026CVE publishedPublication date reported by the CVE source.
- Sep 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=n/a <=1.18.7.1 changes=[{"at":"1.18.8","status":"unaffected"}]
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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