{
 "id": "WPSEC-2026-1305",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1305/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1305/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1305/index.md",
 "title": "Prime Mover – Backup and Migration <= 2.2.1 - Unauthenticated PHP Object Injection via Stored Content Processed During Migration Search-Replace",
 "description": "The Prime Mover – Backup and Migration plugin for WordPress is vulnerable to PHP Object Injection via the database search-and-replace step of a migration or restore in all versions up to, and including, 2.2.1. This is due to deserialization of untrusted input: every database value that contains a search string (such as the old site URL) is passed to unserialize() with no class restriction, and the result is unserialized again if it is itself a string. This makes it possible for unauthenticated attackers to plant a serialized PHP object in stored content, such as a comment. The object is instantiated when an administrator later migrates or restores the site. No known POP chain is present in the vulnerable software itself. If a POP chain is present through another plugin or theme on the target system, it could let the attacker delete arbitrary files, retrieve sensitive data, or execute code.",
 "plugin": {
  "slug": "prime-mover",
  "name": "Prime Mover – Backup and Migration",
  "full_name": "Prime Mover – Backup and Migration",
  "wordpress_org": "https://wordpress.org/plugins/prime-mover/",
  "advisories_url": "https://wpsec.com/vuln/plugin/prime-mover/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/prime-mover"
 },
 "type": "OBJECT INJECTION",
 "cwe": [
  "CWE-502"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 7.5,
  "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "severity": "High"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "2.2.2",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 2.2.2"
  ]
 },
 "introduced_in": null,
 "fixed_in": "2.2.2",
 "remediation": "Update to 2.2.2 or later.",
 "fix_released": "2026-10-19T00:40:33+00:00",
 "published": "2026-10-21T10:43:36+00:00",
 "updated": "2026-10-21T10:35:26.278797+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1305/",
  "https://plugins.svn.wordpress.org/prime-mover/tags/2.2.2/",
  "https://wordpress.org/plugins/prime-mover/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/prime-mover",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-10-21"
 }
}