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TI-2022-21463 Aliases CVE-2022-43706

Cross-site scripting (XSS) vulnerability in the Web UI of StackStorm versions prior to…

Priority LOW 25CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

Cross-site scripting (XSS) vulnerability in the Web UI of StackStorm versions prior to 3.8.0 allowed logged in users with write access to pack rules to inject arbitrary script or HTML that may be executed in Web UI for other logged in users.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00418 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:stackstorm:stackstorm:*:*:*:*:*:*:*:*before 3.8.0VulnerableStackStorm
  • cpe:2.3:a:stackstorm:stackstorm:*:*:*:*:*:*:*:* Versions before 3.8.0 Vulnerable ·StackStorm

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-43706

References

  • TI-2021-20192 In StackStorm versions prior to 3.6.0, the jinja interpreter was not run in sandbox mode… CVSS 3.1HIGH 8.8
  • TI-2022-21635 Improper access control in Key-Value RBAC in StackStorm version 3.7.0 didn't check the… CVSS 3.1HIGH 7.5
  • TI-2021-09734 StackStorm before 3.4.1, in some situations, has an infinite loop that consumes all… CVSS 3.1HIGH 7.5
  • TI-2019-06999 In st2web in StackStorm Web UI before 2.9.3 and 2.10.x before 2.10.3, it is possible to… CVSS 3.0MEDIUM 6.1
  • TI-2018-14401 Incorrect access control in StackStorm API (st2api) in StackStorm before 2.9.2 and 2.10.x… CVSS 3.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences