CVE-2025-47683Network attack vector

Administrator-level object injection via settings deserialization

Published May 7, 2025 · Updated Apr 28, 2026

PHP object injection in Florent Maillefaud WP Maintenance 6.1.9.7 and earlier allows remote authenticated users to inject objects. The wpm_process_settings_export() function deserializes untrusted settings-import data, instantiating attacker-controlled PHP objects. Administrator-level access is required; file deletion, data disclosure, or code execution also requires a usable POP chain from another installed plugin or theme.

CVSS severity7.2
High
EPSS probability0.51%
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 Florent Maillefaud WP Maintenance 6.1.9.7 and earlier allows remote authenticated users to inject objects. The wpm_process_settings_export() function deserializes untrusted settings-import data, instantiating attacker-controlled PHP objects. Administrator-level access is required; file deletion, data disclosure, or code execution also requires a usable POP chain from another installed plugin or theme.

The record

CVE
CVE-2025-47683
Published
May 7, 2025
Updated
Apr 28, 2026
Vendor
Florent Maillefaud
Product
WP Maintenance
Classifications
CWE-502
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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.

  1. Affected versionversion=0 <=6.1.9.7 changes=[{"at":"6.1.9.8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Florent Maillefaud · WP Maintenanceversion=0 <=6.1.9.7 changes=[{"at":"6.1.9.8","status":"unaffected"}]

Published CVSS scores

7.2PatchstackCVSS: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.

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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

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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