GHSA-6MJH-67RM-PH7X
Vulnerability from github – Published: 2026-03-27 15:30 – Updated: 2026-03-27 15:30
VLAI?
Details
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.
Severity ?
8.2 (High)
{
"affected": [],
"aliases": [
"CVE-2026-4984"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-27T15:17:03Z",
"severity": "HIGH"
},
"details": "The Twilio integration webhook handler accepts any POST request without validating Twilio\u0027s \u0027X-Twilio-Signature\u0027.\n\nWhen processing media messages, it fetches user-controlled URLs (\u0027MediaUrlN\u0027 parameters) using HTTP requests that include the integration\u0027s Twilio credentials in the \u0027Authorization\u0027 header.\n\nAn attacker can forge a webhook payload pointing to their own server and receive the victim\u0027s \u0027accountSID\u0027 and \u0027authToken\u0027 in plaintext (base64-encoded Basic Auth), leading to full compromise of the Twilio account.",
"id": "GHSA-6mjh-67rm-ph7x",
"modified": "2026-03-27T15:30:26Z",
"published": "2026-03-27T15:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4984"
},
{
"type": "WEB",
"url": "https://www.tenable.com/security/research/tra-2026-22"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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