CVE-2022-3366Network attack vector

PHP object injection via imported-file unserialization

Published Oct 31, 2022 · Updated May 6, 2025

PHP object injection in PublishPress Capabilities and Capabilities Pro before 2.5.2 allows remote authenticated users to inject objects. The Import/Export feature passes attacker-controlled imported-file content to PHP unserialization instead of using a non-object encoding. Administrator access on a multisite installation is required, and data access, file deletion, or code execution also requires another plugin or theme with a usable gadget chain.

CVSS severity7.2
High
EPSS probability1.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in PublishPress Capabilities and Capabilities Pro before 2.5.2 allows remote authenticated users to inject objects. The Import/Export feature passes attacker-controlled imported-file content to PHP unserialization instead of using a non-object encoding. Administrator access on a multisite installation is required, and data access, file deletion, or code execution also requires another plugin or theme with a usable gadget chain.

The record

CVE
CVE-2022-3366
Published
Oct 31, 2022
Updated
May 6, 2025
Vendor
PublishPress
Product
PublishPress Capabilities
Classifications
CWE-502, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 31, 2022CVE publishedPublication date reported by the CVE source.
  2. May 6, 2025Record 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.

  1. Affected versionversion=2.5.2 <2.5.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

PublishPress · PublishPress Capabilitiesversion=2.5.2 <2.5.2
PublishPress · PublishPress Capabilities Proversion=2.5.2 <2.5.2

Published CVSS scores

7.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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