---
id: CVE-2026-54856
title: WordPress RexCoin theme <= 1.2.6 - PHP Object Injection vulnerability
summary: Unauthenticated PHP Object Injection in RexCoin <= 1.2.6 versions.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-502
vendor: ThemeREX
product: RexCoin
affected:
  - RexCoin >= n/a <= 1.2.6
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-10-30T18:38:30.630764Z'
published: '2026-10-29'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T18:50:04.441Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-54856'
references:
  - url: >-
      https://patchstack.com/database/wordpress/theme/rexcoin/vulnerability/wordpress-rexcoin-theme-1-2-6-php-object-injection-vulnerability?_s_id=cve
tags:
  - cve.org
epss: 0.0049
epssPercentile: 0.42416
ingestedAt: '2026-11-05T16:24:31.383Z'
---

## Overview

Unauthenticated PHP Object Injection in RexCoin <= 1.2.6 versions.

## Affected

- `RexCoin >= n/a <= 1.2.6`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.