XSS in Stackstorm
CVE-2019-9580
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.030 (85.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Stackstorm
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-9580?
- CVE-2019-9580 is a medium-severity vulnerability in Stackstorm, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-03-09.
- How severe is CVE-2019-9580?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2019-9580 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.