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Apicona EUVD-2026-15713

| CVE-2026-25400 HIGH
Deserialization of Untrusted Data (CWE-502)
2026-03-25 Patchstack GHSA-2fj3-qvr8-q2c6
Deserialization Apicona
8.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Re-analysis Queued
Apr 24, 2026 - 16:37 vuln.today
cvss_changed
EUVD ID Assigned
Mar 25, 2026 - 16:47 euvd
EUVD-2026-15713
Analysis Generated
Mar 25, 2026 - 16:47 vuln.today
CVE Published
Mar 25, 2026 - 16:14 nvd
HIGH 8.8

DescriptionCVE.org

Deserialization of Untrusted Data vulnerability in thememount Apicona apicona allows Object Injection.This issue affects Apicona: from n/a through <= 24.1.0.

AnalysisAI

Apicona, a WordPress theme by thememount, contains a PHP object injection vulnerability stemming from unsafe deserialization of untrusted data (CWE-502). All versions through 24.1.0 are affected. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to Apicona application
Delivery
Send malicious serialized object payload
Exploit
Trigger unsafe deserialization
Execution
Instantiate arbitrary object
Impact
Execute arbitrary code with application privileges
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Vulnerability AssessmentAI

Exploitation Authenticated user with login access to Apicona <= 24.1.0. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Although CVSS and EPSS scores are not currently available, the underlying CWE-502 vulnerability class is consistently high-severity in real-world exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker submits a crafted HTTP request to a web form or REST endpoint in a WordPress site running Apicona, embedding a malicious serialized PHP object in a parameter. When Apicona deserializes this data without validation, the object instantiation triggers a gadget chain present in WordPress or installed plugins, resulting in arbitrary PHP code execution on the web server. …
Remediation Immediately upgrade Apicona to a version newer than 24.1.0 if a patched release is available from thememount. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 7 days: Identify all affected systems and apply vendor patches promptly. …

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EUVD-2026-15713 vulnerability details – vuln.today
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