Description
Deserialization of Untrusted Data vulnerability in ThemeREX Group Vagabonds vagabonds allows Object Injection.This issue affects Vagabonds: from n/a through 1.3.10.
Published: 2026-10-23
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution via PHP Object Injection
Action: Immediate Patch
AI Analysis

Impact

The Vagabonds theme for WordPress contains a Deserialization of Untrusted Data flaw that allows attackers to perform PHP Object Injection. A crafted serialized payload can be handled by the theme’s deserialization routine, enabling the execution of arbitrary PHP code. This weakness is classified as CWE-502 and can lead to full compromise of the website, including data theft, modification, and availability disruption.

Affected Systems

The vulnerability impacts the Vagabonds theme developed by ThemeREX Group, affecting all versions from the initial release (n/a) through version 1.3.10. Any site using a vulnerable version is at risk.

Risk and Exploitability

The flaw carries a CVSS score of 9.8, indicating a critical level of risk. EPSS data is not available, and the vulnerability is not listed in CISA’s KEV catalog. Attackers can likely exploit the flaw by submitting a malicious serialized payload via any input that the theme processes—this might occur through HTTP requests or custom AJAX endpoints. While no authentication is explicitly required in the description, access to the vulnerable code path would typically be needed for exploitation.

Generated by OpenCVE AI on October 23, 2026 at 16:12 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade the Vagabonds theme to any version newer than 1.3.10, which removes the deserialization code that processes untrusted data.
  • If an upgrade cannot be performed immediately, block or disable the theme’s deserialization endpoints or filter the input so that only trusted data is processed—this limits the attack surface until a patch is available.
  • Apply additional input validation or a Web Application Firewall rule to reject or sanitize any serialized payloads. Use safe serialization alternatives and avoid using PHP’s unserialize on data that originates from untrusted sources.

Generated by OpenCVE AI on October 23, 2026 at 16:12 UTC.

Tracking

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Advisories

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History

Sat, 24 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Fri, 23 Oct 2026 13:15:00 +0000

Type Values Removed Values Added
Description Deserialization of Untrusted Data vulnerability in ThemeREX Group Vagabonds vagabonds allows Object Injection.This issue affects Vagabonds: from n/a through 1.3.10.
Title WordPress Vagabonds theme <= 1.3.10 - 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: 2026-10-24T14:47:00.597Z

Reserved: 2026-10-19T19:23:59.820Z

Link: CVE-2026-112856

cve-icon Vulnrichment

Updated: 2026-10-24T14:44:27.716Z

cve-icon NVD

Status : Deferred

Published: 2026-10-23T13:17:07.323

Modified: 2026-10-24T15:17:07.413

Link: CVE-2026-112856

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T16:15:17Z

Weaknesses
  • CWE-502

    Deserialization of Untrusted Data