WPPConnect Server through 2.10.74 contains a missing authentication vulnerability that allows unauthenticated
Source GCVE Database
Not known to be exploited · CVSS 8.2 High.
Data as of 3 Nov 2026, 20:00 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 8.2 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 5.9 |
| CNA | CVSS 4.0 | 8.2 |
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 3 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| wppconnectwppconnect-server | Affected
| Fixed in– |
npmwppconnect-serverpkg:npm/wppconnect-serverOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Since the vulnerability is due to missing authentication middleware, applying proper authentication checks such as the verifyToken middleware on the Chatwoot webhook route is recommended. Monitor vendor advisories for any official fixes or updates.
Description
WPPConnect Server versions up to 2.10.74 have a missing authentication vulnerability that permits unauthenticated attackers to send WhatsApp messages via the Chatwoot webhook route. This occurs because the verifyToken middleware is not applied, allowing attackers who know or guess a connected session name to post outgoing message bodies and send arbitrary texts or files from that account to any number.
References
- nvd.nist.gov/vuln/detail/CVE-2026-121557 (opens in a new tab)
- github.com/wppconnect-team/wppconnect-server/issues/2701 (opens in a new tab)
- github.com/wppconnect-team/wppconnect-server/pull/2702 (opens in a new tab)
- github.com/wppconnect-team/wppconnect-server (opens in a new tab)
- github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/controller/deviceController.ts (opens in a new tab)
- github.com/wppconnect-team/wppconnect-server/blob/v2.10.74/src/routes/index.ts (opens in a new tab)
- vulncheck.com/advisories/wppconnect-server-through-2.10.74-missing-authentication-via-api-session-chatwoot (opens in a new tab)