CVE-2026-4984HIGH 8.2EPSS p5.1%
CVE-2026-4984CVE-2026-4984
Description
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.
Scoring
| CVSS 3.1 | 8.2 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
| EPSS | 0.16% probability of exploitation · percentile 5.1% · 2026-06-18T12:00:27Z |
| Published | 2026-03-27 |
| Last modified | 2026-05-10 |
Underlying weaknesses· 2
References
2
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Insufficient Verification of Data Authenticitycwe-345 | 0% | live |
| Weakness | Cross-Site Request Forgery (CSRF)cwe-352 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.