---
id: CVE-2026-4984
title: >-
  The Twilio integration webhook handler accepts any POST request without
  validating Twilio's 'X-Twilio-Signature'.


  When processing media messages, it fetches user-controlled URLs ('MediaUrlN'
  parameters) using HTTP requests that include …
summary: >-
  The Twilio integration webhook handler accepts any POST request without
  validating Twilio's 'X-Twilio-Signature'.


  When processing media messages, it fetches user-controlled URLs ('MediaUrlN'
  parameters) using HTTP requests that include …
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-345
  - CWE-352
vendor: botpress
product: botpress
affected:
  - botpress
published: '2026-03-27'
updated: '2026-08-18'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-4984'
references:
  - url: 'https://www.tenable.com/security/research/tra-2026-22'
    label: vulnreport@tenable.com
tags:
  - nvd
epss: 0.00177
epssPercentile: 0.06467
ingestedAt: '2026-08-18T18:21:28.392Z'
---

## Overview

The Twilio integration webhook handler accepts any POST request without validating Twilio's 'X-Twilio-Signature'.

When processing media messages, it fetches user-controlled URLs ('MediaUrlN' parameters) using HTTP requests that include the integration's Twilio credentials in the 'Authorization' header.

An attacker can forge a webhook payload pointing to their own server and receive the victim's 'accountSID' and 'authToken' in plaintext (base64-encoded Basic Auth), leading to full compromise of the Twilio account.

## Affected

- `botpress`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.