CVE-2026-115725
Chatwoot before 4.17.0 contains an authorization bypass vulnerability that allows authenticated agent bots to access other accounts by supplying a foreign contact inbox source_id.
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
Chatwoot before 4.17.0 contains an authorization bypass vulnerability that allows authenticated agent bots to access other accounts by supplying a foreign contact inbox source_id. Attackers can call the conversations create endpoint with another account's source_id to create or retrieve conversations and post messages to that account's contacts.
- CVSS 4.0
- 2.3 LOWCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.24% probability · 15th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-639
- Source
- disclosure@vulncheck.com
EPSS moved from 0.3% on 24 October 2026 to 0.2% on 26 October 2026.
References
- https://github.com/chatwoot/chatwoot/blob/v4.16.2/app/controllers/api/v1/accounts/conversations_controller.rb#L206-L213
- https://github.com/chatwoot/chatwoot/blob/v4.16.2/app/policies/inbox_policy.rb#L22-L27
- https://github.com/chatwoot/chatwoot/commit/2d173978fcd64e6927b407c171095a3a7ceb03dd
- https://github.com/chatwoot/chatwoot/pull/15521
- https://github.com/chatwoot/chatwoot/releases/tag/v4.17.0
- https://www.vulncheck.com/advisories/chatwoot-before-4.17.0-cross-account-authorization-bypass-via-source-id
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.