Cyber Resilience

CVE-2025-68903

HighRCE

Published: 22 January 2026

Published
22 January 2026
Modified
15 April 2026
KEV Added
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Patch
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CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0037 28.7th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2025-68903 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 28.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 RA-5 (Vulnerability Monitoring and Scanning) and SI-10 (Information Input Validation).

Deeper analysis

CVE-2025-68903 is a Deserialization of Untrusted Data vulnerability (CWE-502) in the AivahThemes Anona WordPress theme, which allows Object Injection. This issue affects Anona versions from an unspecified initial release through 8.0 inclusive. The vulnerability carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), reflecting its high severity due to network accessibility, low attack complexity, and potential for significant impacts on confidentiality, integrity, and availability.

A low-privileged authenticated user, such as a standard registered WordPress user, can exploit the vulnerability remotely without requiring user interaction. Exploitation involves providing untrusted data for deserialization, leading to Object Injection, which enables high-impact outcomes including unauthorized data access, modification, and disruption of services.

The Patchstack advisory provides details on this PHP Object Injection vulnerability in the Anona theme version 8.0; security practitioners should consult https://patchstack.com/database/Wordpress/Theme/anona/vulnerability/wordpress-anona-theme-8-0-php-object-injection-vulnerability?_s_id=cve for mitigation guidance, such as applying patches or upgrading the theme.

OWASP Top 10 for Web (2025)

A08:2025 Software or Data Integrity Failures

EU & UK References

Vulnerability details

Deserialization of Untrusted Data vulnerability in AivahThemes Anona anona allows Object Injection.This issue affects Anona: from n/a through <= 8.0.

CWE(s)
CWE-502

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Remote authenticated deserialization/object injection in a public-facing WordPress theme directly enables exploitation of the web application for code execution or impact.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-62368Shared CWE-502
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CVE-2026-22505Shared CWE-502
CVE-2025-53078Shared CWE-502
CVE-2026-43633Shared CWE-502
CVE-2025-60039Shared CWE-502
CVE-2026-25429Shared CWE-502
CVE-2025-7697Shared CWE-502
CVE-2026-22248Shared CWE-502

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly mitigates CVE-2025-68903 by requiring identification, reporting, testing, and deployment of patches for the deserialization flaw in the Anona WordPress theme.

SI-10 Information Input Validation good match
prevent

Prevents exploitation of the deserialization of untrusted data vulnerability by validating all inputs before processing to block malicious object injection.

RA-5 Vulnerability Monitoring and Scanning good match
detectrespond

Detects the CVE-2025-68903 vulnerability through regular scanning of the Anona theme and triggers remediation to address object injection risks.

References