CVE-2026-115806

LOWCVSS 9.8 · CRITICAL

Signal is active with 3 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The Prime Mover – Backup and Migration plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.2.1 via deserialization of untrusted input in the migration search-and-replace routine (recursiveUnserializeReplace()). An unauthenticated attacker can store a crafted, base64-encoded serialized object in wp_comments.comment_content through the standard comment-submission endpoint (wp-comments-post.php). When an administrator subsequently performs a routine Prime Mover export or restore, the plugin base64-decodes that stored value and passes it to unserialize() with no allowed_classes restriction. A Property-Oriented Programming (POP) chain is present in the plugin's own bundled Freemius library (FS_Clone_Manager::__set → FS_Option_Manager::set_option → store() → update_option()), so no additional plugin or theme is required — the plugin ships the gadget itself.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 4 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Peaked at 3 mentions on most recent observed day (2026-10-25)
  • 4 total mentions across 2 days

Deep dive

Activity timeline4 mentions / 2d
01223Mentions · 2026-10-24: 1Mentions · 2026-10-25: 310-2410-25
Referenced assets4 URLs
Full discourse4 posts
  • ThreatAft@ThreatAft

    🔐CVE-2026-115806 — 9.8 in Prime Mover (WordPress) Comment plants payload. Admin export fires it. Gadget ships in the plugin's own Freemius bundle — no extras. Check wp_comments for base64 blobs. Patch: 2.2.2 https://threataft.com/articles/prime-mover-cve-2026-115806-php-object-injection #WordPress #CVE #CyberSecurity #PrimeMover

    1001190
    52 followersView on X
  • takenaka hiroya@Joe_Biden_ja

    WordPressプラグイン Prime Mover にPHPオブジェクトインジェクションの脆弱性(CVSS 9.8)。使っている方は修正版が出ているか確認を。現時点で公式の修正版は確認できていません。 https://cve.autoarticles.net/cve/CVE-2026-115806

    0000043
    557 followersView on X
  • Donweb Media@DonwebMedia

    Si usás Prime Mover en WordPress, esto es para leer ya: hay una falla crítica (CVSS 9.8) que permite ejecutar código remoto sin ni siquiera loguearse. La solución es simple: actualizar a la 2.2.2 https://seguridadenwordpress.com/cve-2026-115806-prime-mover-vulnerabilidad-critica/

    0000020
    9 followersView on X
  • ADK Cyber@ADKCyber

    CVE-2026-115806 (CVSS 9.8) impacts Prime Mover WordPress plugin ≤2.2.1 via PHP Object Injection. Update immediately if in use: https://nvd.nist.gov/vuln/detail/CVE-2026-115806 via NVD Recent High CVSS #CyberSecurity #InfoSec #Vulnerability #AI #MachineLearning https://t.co/L9MSG98Xcx

    0000062
    100 followersView on X

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