Object Injection Vulnerability in StellarWP Advanced Post Manager
CVE-2026-97283

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Advanced Post Manager
Vendor
CVE Published:
5 October 2026

What is CVE-2026-97283?

The Advanced Post Manager by StellarWP is impacted by a vulnerability that allows for object injection through the deserialization of untrusted data. This can lead to severe security risks, enabling malicious actors to execute code and compromise the integrity of the website. Users of Advanced Post Manager from version n/a up to 4.5.5 should take necessary precautions and upgrade to secure their installations.

Affected Version(s)

Advanced Post Manager 0 <= 4.5.5

References

https://patchstack.com/database/wordpress/plugin/advanced...
vdb-entry

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Peter Tang | Patchstack Bug Bounty Program
.