CVSS 3.1
4.3 mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:LCVE-2024-2435
Medium (4.3). EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/temporalio/ui-server/v2 2.25.0.
For an attacker with pre-existing access to send a signal to a workflow, the attacker can make the signal name a script that executes when a victim views that signal. The XSS is in the timeline page displaying the workflow execution details of the workflow that was sent the crafted signal.
Access to send a signal to a workflow is determined by how you configured the authorizer on your server. This includes any entity with permission to directly call SignalWorkflowExecution or SignalWithStartWorkflowExecution, or any entity can deploy a worker that has access to call workflow progress APIs (specifically RespondWorkflowTaskCompleted).
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-31)
- CWE
- CWE-79
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-8f25-w7qj-r7hc | Go | github.com/temporalio/ui-server/v2 | <2.25.0 | 2.25.0 |
| GO-2024-2675 | Go | github.com/temporalio/ui-server | all versions | no fix published |
| GO-2024-2675 | Go | github.com/temporalio/ui-server/v2 | <2.25.0 | 2.25.0 |