CVE-2026-25400Network attack vector

Subscriber-level object injection via unsafe deserialization

Published Mar 25, 2026 · Updated Mar 25, 2026

PHP object injection in Thememount Apicona 24.1.0 and earlier allows remote authenticated users to instantiate attacker-controlled objects. Patchstack identifies unsafe deserialization but does not disclose the affected function, request parameter, or serialized-data path. Subscriber access is required, and further consequences depend on a usable property-oriented programming chain in the WordPress environment.

CVSS severity8.8
High
EPSS probability0.34%
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 Thememount Apicona 24.1.0 and earlier allows remote authenticated users to instantiate attacker-controlled objects. Patchstack identifies unsafe deserialization but does not disclose the affected function, request parameter, or serialized-data path. Subscriber access is required, and further consequences depend on a usable property-oriented programming chain in the WordPress environment.

The record

CVE
CVE-2026-25400
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
Thememount
Product
Apicona
Classifications
CWE-502, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 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=n/a <=<= 24.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Thememount · Apiconaversion=n/a <=<= 24.1.0

Published CVSS scores

8.8PatchstackCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
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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