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CVE-2022-43706

20
FAUCET Score

CVE-2022-43706 describes a cross-site scripting (XSS) vulnerability in the Web UI of StackStorm versions prior to 3.8.0. This flaw allows authenticated users with write access to pack rules to inject malicious scripts or HTML, which could then execute in the browsers of other logged-in users. The vulnerability carries a CVSS score of 5.4 (Medium), indicating a low attack complexity and requiring user interaction, with potential impacts on confidentiality and integrity. The attack vector is over the network, but requires prior authentication and specific permissions. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting it is not a widely recognized or actively targeted threat.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.8.0CPE matchmatch criteria
cpe:2.3:a:stackstorm:stackstorm:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 47th percentile among its peer group of 15,224 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

stackstorm.com / 2022/12/v3-8-0-released
Vendor Advisory