Description
draw.io is a configurable diagramming and whiteboarding application. Prior to version 29.7.9, the draw.io client accepts a ?gitlab= URL parameter that overrides the GitLab server URL used during OAuth sign-in. A crafted link causes the user-s click on draw.io-s -Authorize in GitLab- dialog to open a popup on the attacker-controlled host instead of gitlab.com. This can lead to credential fishing and session state token exfiltration. This issue has been patched in version 29.7.9.
CVSS 3.4EPSS 0.192%Risk 0.35
View source- Published
- 2026-05-08 22:16:31
- Affected versions
- <29.7.9
- Type
- Core software
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N