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Critical 9.8Published Oct 5, 2026

CVE-2026-97283WordPress Advanced Post Manager plugin <= 4.5.5 - PHP Object Injection vulnerability

Updated under an hour ago ()

Does this affect you?

It affects Liquid Web / StellarWP Advanced Post Manager. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.36%, higher than 28% of scored CVEs.

Deserialization of Untrusted Data vulnerability in Liquid Web / StellarWP Advanced Post Manager advanced-post-manager allows Object Injection.This issue affects Advanced Post Manager: from n/a through 4.5.5.

CVSS
9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-502
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
0.36% (percentile 28)
Assigned by
Patchstack
NVD analysis
Deferred
Record last updated
Oct 5, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Liquid Web / StellarWP Advanced Post Manager
liquid_web_stellarwp:advanced_post_manager (from the name)
through 4.5.5; fixed at 4.5.6
CNA record

References

  • vdb-entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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