Description
Unauthenticated PHP Object Injection in Alliance <= 3.11 versions.
Published: 2026-10-10
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

The vulnerability is an unauthenticated PHP Object Injection that allows an attacker to instantiate arbitrary PHP objects in the target system. If exploited, the attacker can execute arbitrary code with the privileges of the web server, enabling full system compromise. The weakness is identified as CWE-502.

Affected Systems

All installations of the ThemeREX:Alliance WordPress theme at or below version 3.11 are affected. Deployments using this theme on WordPress sites are at risk.

Risk and Exploitability

The recorded CVSS score is 9.8, indicating catastrophic severity. EPSS data is unavailable, and the vulnerability is not listed in the CISA KEV catalog. The flaw is unauthenticated, so an attacker can trigger it via crafted input sent over the web interface, likely through a HTTP request that targets the theme’s PHP scripts.

Generated by OpenCVE AI on October 10, 2026 at 21:47 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade the ThemeREX:Alliance theme to a version newer than 3.11, applying the vendor’s fix that removes vulnerable code paths.
  • If immediate upgrade is not feasible, switch to a safe default WordPress theme or disable the Alliance theme to eliminate the attack vector until a patch is applied.
  • Ensure that the web server and PHP are running the latest security‑updated versions, as newer releases may mitigate indirect exploitation paths.

Generated by OpenCVE AI on October 10, 2026 at 21:47 UTC.

Tracking

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Advisories

No advisories yet.

History

Sun, 11 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Sat, 10 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
Description Unauthenticated PHP Object Injection in Alliance <= 3.11 versions.
Title WordPress Alliance theme <= 3.11 - PHP Object Injection vulnerability
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Patchstack

Published:

Updated: 2026-10-11T11:53:09.311Z

Reserved: 2026-08-24T17:28:20.060Z

Link: CVE-2026-78529

cve-icon Vulnrichment

Updated: 2026-10-11T11:49:17.388Z

cve-icon NVD

Status : Deferred

Published: 2026-10-10T20:16:46.590

Modified: 2026-10-13T13:29:12.567

Link: CVE-2026-78529

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-10T22:00:13Z

Weaknesses
  • CWE-502

    Deserialization of Untrusted Data