CVE-2026-80467

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☠️ CVE-2026-80467

«ACF Extended — Unauthenticated Privilege Escalation»

"CVE-2026-80467" concerns a potentially unsafe configuration involving publicly accessible ACF Extended forms and account/role-related fields.

Under vulnerable conditions, improper server-side validation may allow unauthorized account creation with elevated privileges.

┌────────────────────────────────────────────────────────────┐ │ VULNERABILITY PROFILE │ ├────────────────────────────────────────────────────────────┤ │ │ │ CVE : CVE-2026-80467 │ │ PRODUCT : ACF Extended │ │ AFFECTED : <= 0.9.2.6 │ │ PLATFORM : WordPress │ │ VECTOR : Remote │ │ AUTHENTICATION : Unauthenticated │ │ IMPACT : Privilege Escalation │ │ RESEARCHER : SenimanWartefak │ │ │ └────────────────────────────────────────────────────────────┘

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🔥 RESEARCH

                 ┌──────────────┐
                 │    TARGET    │
                 └──────┬───────┘
                        │
                        ▼
              ┌──────────────────┐
              │ WORDPRESS CHECK  │
              └────────┬─────────┘
                       │
                       ▼
              ┌──────────────────┐
              │ ACF EXTENDED     │
              │ FINGERPRINT      │
              └────────┬─────────┘
                       │
                       ▼
              ┌──────────────────┐
              │ FRONTEND FORM    │
              │ DISCOVERY        │
              └────────┬─────────┘
                       │
                       ▼
              ┌──────────────────┐
              │ FIELD ANALYSIS   │
              └────────┬─────────┘
                       │
                       ▼
              ┌──────────────────┐
              │ ROLE FIELD       │
              └────────┬─────────┘
                       │
                       ▼
              ┌──────────────────┐
              │ SECURITY FINDING │
              └──────────────────┘

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🧬 ATTACK SURFACE

                INTERNET
                   │
                   ▼
          ┌─────────────────┐
          │    WORDPRESS    │
          └────────┬────────┘
                   │
                   ▼
          ┌─────────────────┐
          │  ACF EXTENDED   │
          └────────┬────────┘
                   │
                   ▼
          ┌─────────────────┐
          │ FRONTEND FORM   │
          └────────┬────────┘
                   │
      ┌────────────┼────────────┐
      │            │            │
      ▼            ▼            ▼
  USERNAME       EMAIL       PASSWORD
      │            │            │
      └────────────┼────────────┘
                   │
                   ▼
              ROLE FIELD
                   │
                   ▼
          ┌─────────────────┐
          │ SERVER-SIDE     │
          │ VALIDATION      │
          └────────┬────────┘
                   │
                   ▼
              SECURITY IMPACT

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🕵️ DETECTION

The included Python research tool can inspect publicly observable characteristics of ACF Extended forms.

Detection checks

[01] WordPress endpoint [02] ACF Extended fingerprint [03] Public frontend form [04] ACF nonce [05] Form metadata [06] Username field [07] Email field [08] Password field [09] Role field [10] Potential security finding

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⚙️ INSTALLATION

git clone https://github.com/SangSenimanWartefak/CVE-2026-80467.git

cd CVE-2026-80467

pip install requests

Verify installation:

python3 SangSenimamWartefak.py --help

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🚀 USAGE

Single Target

python3 SangSenimamWartefak.py
--url https://authorized-target.example
--detect

Verbose

python3 SangSenimamWartefak.py
--url https://authorized-target.example
--detect
-v

Mass Detection

Create:

urls.txt

Example:

https://authorized-site-one.example https://authorized-site-two.example https://authorized-site-three.example

Then:

python3 SangSenimamWartefak.py
--targets urls.txt
--detect
--threads 10

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🖥️ TERMINAL

Example detection output:

┌──(SenimanWartefak㉿security)-[~/CVE-2026-80467] └─$ python3 SangSenimamWartefak.py
--url https://authorized-target.example
--detect

[INFO] Stage 1: Scanning for ACF Extended form [INFO] Found form page via REST [INFO] Form found [INFO] Analyzing account fields

[VULN] Potential vulnerable configuration

Safe result:

[SAFE] https://authorized-target.example | Form found but no role field

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📊 STATUS

Status| Meaning 🔴 "[VULN]"| Potential vulnerable configuration detected 🟢 "[SAFE]"| Tested indicators not detected 🟡 "[ASSUMED]"| Requires manual verification 🔵 "[INFO]"| Informational ⚫ "[ERR]"| Request or scanning error

«"[SAFE]" does not mean the target is guaranteed secure.»

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💥 IMPACT

A vulnerable configuration may allow unauthorized account creation with elevated privileges.

Potential consequences can include:

             UNAUTHORIZED ACCESS
                     │
                     ▼
             PRIVILEGED ACCOUNT
                     │
        ┌────────────┼────────────┐
        ▼            ▼            ▼
    Dashboard     Content      Account
     Access      Changes      Creation
        │            │            │
        └────────────┼────────────┘
                     ▼
             FURTHER COMPROMISE

Actual impact depends on WordPress configuration and the privileges assigned by the affected application.

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🛡️ MITIGATION

"01" UPDATE

Upgrade ACF Extended to a version containing the appropriate security fix.

"02" AUDIT FORMS

Review publicly accessible forms that handle:

• User registration • Account creation • User profiles • Role assignment

"03" SERVER-SIDE VALIDATION

Never trust a privileged role supplied directly by an unauthenticated client.

CLIENT │ │ role = ? ▼ SERVER │ ├── Validate ├── Authorize └── Reject unauthorized role

"04" AUDIT USERS

Review existing WordPress accounts for unexpected users or privilege assignments.

"05" REVIEW LOGS