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TI-2026-63670 Aliases CVE-2026-95665GHSA-24x5-fh5v-x5g9

MISP Reflected Cross-Site Scripting in Event Export Confirmation Form via Unescaped JSON

Priority LOW 24CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

MISP contains a reflected cross-site scripting (XSS) vulnerability in the event REST search export confirmation form. The view template app/View/Events/ajax/eventRestSearchExportConfirmationForm.ctp renders a URL-supplied event ID list into a single-quoted JavaScript string literal using PHP's json_encode() without any hex-encoding flags. By default, json_encode() escapes double quotes and backslashes but does not escape single quotes. Because the JavaScript string is delimited by single quotes, an attacker can inject a single-quote character to terminate the string literal and execute arbitrary JavaScript in the victim's browser session. The vulnerability affects the Default and UiBeta themes, both of which render this view. The Overmind theme's own copy of the form already passed the value through an escaped data attribute and was not affected by this specific sink. Preconditions: the victim must be an authenticated MISP user and must actively open or navigate to the attacker-crafted URL. The attacker does not require an account or any prior access to the MISP instance. Security impact: successful exploitation allows execution of arbitrary JavaScript in the context of the MISP web application, potentially leading to session hijacking, unauthorized actions performed on behalf of the victim, exfiltration of sensitive data visible in the session, or further client-side attacks. The vulnerable component's own confidentiality, integrity, and availability are not directly compromised; the impact is on the underlying user session.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00542 45th percentileScored 2026-11-07
Fix Fixed MISP (MISP): 2.5.47

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
MISPMISPbefore 2.5.472.5.47Patch availableCNA
  • MISP VendorMISP Affected before 2.5.47 Fixed in 2.5.47 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:misp-project:misp:*:*:*:*:*:*:*:*——Misp-project
  • cpe:2.3:a:misp-project:misp:*:*:*:*:*:*:*:* Versions — — ·Misp-project

Remediation

  • Fix · CNA MISP (MISP) Fixed in 2.5.47

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    MISP 2.5.47

    19 records Highest priority Priority LOW 19 LOW

    Other records, highest priority first

    • TI-2026-63688 MISP: Disabled-user check ineffective in pre-authentication TOTP login branchPriority LOW 37
    • TI-2026-63677 MISP Unauthenticated Blind SSRF via XML Body ProcessingPriority LOW 37
    • TI-2026-63690 MISP: PHP phar stream wrapper enables deserialization and code execution via caller-influenced filesystem pathsPriority LOW 36
    Show all 19 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-95665
  2. 2026-10-03 Alias added: GHSA-24x5-fh5v-x5g9

References

Patch 1

  • 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
See all 182 →

Sources

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