CVE-2026-121557
WPPConnect Server through 2.10.74 contains a missing authentication vulnerability that allows…
- Risk score
- 42/100
- CVSS
- 5.9 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 3 Nov 2026
Open in the live forecast Today's forecast
What to know
- What it is
- WPPConnect Server through 2.10.74 contains a missing authentication vulnerability that allows unauthenticated attackers to send WhatsApp messages by calling the Chatwoot webhook route without verifyToken middleware. Attackers who know or guess a connected session name can POST outgoing message bodies to send arbitrary…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 5.9 medium
References
- https://github.com/wppconnect-team/wppconnect-server
- https://github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/controller/deviceController.ts#L2230-L2324
- https://github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/routes/index.ts#L963
- https://github.com/wppconnect-team/wppconnect-server/issues/2701
- https://github.com/wppconnect-team/wppconnect-server/pull/2702
- https://www.vulncheck.com/advisories/wppconnect-server-through-2.10.74-missing-authentication-via-api-session-chatwoot
Original description
WPPConnect Server through 2.10.74 contains a missing authentication vulnerability that allows unauthenticated attackers to send WhatsApp messages by calling the Chatwoot webhook route without verifyToken middleware. Attackers who know or guess a connected session name can POST outgoing message bodies to send arbitrary texts or files from that account to any number.
Last activity 3 Nov 2026. Patch Forecast updates every hour.