CVE-2019-9580

6.1 mediumEPSS 3.0%

Medium (6.1) in stackstorm stackstorm. EPSS 3.0% chance of exploitation in the next 30 days.

In st2web in StackStorm Web UI before 2.9.3 and 2.10.x before 2.10.3, it is possible to bypass the CORS protection mechanism via a "null" origin value, potentially leading to XSS.

Severity

CVSS 3.0

6.1 medium

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 3.0% chance of exploitation in the next 30 days; higher than 87% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2019-03-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

stackstorm:stackstorm

References

https://github.com/StackStorm/st2/releases/tag/v2.10.3
https://github.com/StackStorm/st2/releases/tag/v2.9.3
https://stackstorm.com/2019/03/08/stackstorm-2-9-3-2-10-3/
https://github.com/StackStorm/st2/releases/tag/v2.10.3
https://github.com/StackStorm/st2/releases/tag/v2.9.3

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