Reflected XSS in MISP workflow module via misp-modules parameter names
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
MISP before 2.5.48 has a reflected cross-site scripting flaw in the workflow module interface. Parameter names returned by the misp-modules service are rendered as raw HTML form labels without output encoding, CWE-79. An attacker who can influence those parameter names can inject HTML or JavaScript that runs in the browser of an authenticated MISP user who views the workflow module page.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
MISP contains a reflected cross-site scripting (XSS) vulnerability in the workflow module interface. Parameter names returned by the misp-modules service are rendered as raw HTML form labels on the workflow module page without output encoding. An attacker who can influence the parameter names reported by the misp-modules service can inject arbitrary HTML or JavaScript that executes in the context of an authenticated MISP user's browser. Preconditions: - The attacker must be able to control or influence parameter names reported by the misp-modules service. - A victim must be authenticated and view the affected workflow module page. Impact: - Execution of arbitrary JavaScript in the victim's browser session. - Potential theft of session tokens, manipulation of the MISP interface, or initiation of unauthorized actions on behalf of the victim. Affected versions: <2.5.48.
Why it matters now
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
Remediation
MISP fixed this in version 2.5.48. Upgrade MISP to 2.5.48 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA MISP (MISP) Fixed in 2.5.48
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
MISP 2.5.48
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2026-76319 MISP server settings lookup exposes configuration secretsPriority LOW 31
- TI-2026-76314 Missing authorization in MISP proposal visibility exposes shadow attributesPriority LOW 31
- TI-2026-76320 MISP leaks redacted module settings and lets users edit CLI-only onesPriority LOW 24
Timeline
- 2026-10-19 Threatist record created from CVE-2026-112184
- 2026-10-19 Alias added: GHSA-4j43-fg42-frxx
- 2026-10-19 CISA SSVC decision points changed
References
Patch 1
More MISP vulnerabilities
- TI-2025-41517 In MISP before 2.5.28, app/View/Elements/Workflows/executionPath.ctp allows XSS in the workflow execution path. CVSS 3.1CRITICAL 9.0
- TI-2026-65744 MISP TOTP Code Replay Allows Duplicate Authentication Within Validity Period CVSS 4.0CRITICAL 9.3
- TI-2026-54145 Path Traversal in MISP Object Template Resolution During STIX Import and Export in misp-stix library CVSS 4.0HIGH 8.8
- TI-2020-10250 MISP MISP-maltego 1.4.4 incorrectly shares a MISP connection across users in a remote-transform use case. CVSS 3.1CRITICAL 9.8
- TI-2026-59159 MISP Unauthenticated Mail Endpoints Allow Unbounded Storage Consumption and Request Flooding CVSS 4.0HIGH 8.7
- TI-2026-58541 MISP LDAP and LinOTP Authentication Bypass via Empty or Invalid Credentials CVSS 4.0CRITICAL 9.5
Sources
- CVE-2026-112184 · CVE Program
- CVE-2026-112184 · NVD
- FIRST EPSS
- GHSA-4j43-fg42-frxx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences