# CVE-2026-95661: MISP reflected XSS in attribute histogram view

Source: https://junglewise.ai/threats/cve-2026-95661-misp-contains-a-reflected-cross-site-scripting-xss-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-22. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-95661 · Severity: info · Published 2026-09-22

MISP is a threat intelligence platform used by organizations to share and analyze cybersecurity threat information. A reflected cross-site scripting flaw in the attribute histogram feature allows an attacker to execute malicious code in an authenticated user's browser by tricking them into visiting a crafted URL, potentially enabling cookie theft, unauthorized actions, or data exfiltration from the MISP system.

Technologies: [MISP Project MISP](https://junglewise.ai/threats/technologies/misp-project-misp). Vendors: [MISP Project](https://junglewise.ai/threats/vendors/misp-project).

## Quick answers

**Is CVE-2026-95661 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-95661 being exploited in the wild.

**How severe is CVE-2026-95661?** Informational severity, published 22 September 2026.

**Which products and versions are affected?** MISP Project MISP.

**Is there a fix for CVE-2026-95661?** A patch was published on 2026-09-22. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-95661 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-95661?** Check whether you run MISP Project MISP. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability exists in the histogram.ctp template where the $selectedTypes variable derived from the URL path is directly interpolated into a JavaScript array literal within an onClick HTML attribute without encoding or escaping. An attacker crafts a malicious URL with a specially-crafted type value and socially engineers an authenticated MISP user to click it, causing arbitrary JavaScript execution in the victim's browser context with access to the MISP origin.

## Affected products

- MISP Project MISP

## Timeline

- 2026-09-22: disclosed
- 2026-09-22: patched

## References

- [https://github.com/MISP/MISP/commit/95b8f21f6](https://github.com/MISP/MISP/commit/95b8f21f6)

## Related threats

- [MISP module plugin settings flags not preserved](https://junglewise.ai/threats/cve-2026-112192-misp-contains-a-vulnerability-in-the-handling-of-module-plugin)
- [MISP server settings information disclosure](https://junglewise.ai/threats/cve-2026-112188-misp-contains-a-vulnerability-in-its-server-settings-lookup)
- [MISP reflected XSS in workflow module interface](https://junglewise.ai/threats/cve-2026-112184-misp-contains-a-reflected-cross-site-scripting-xss-vulnerability)
- [MISP data integrity flaw in event deletion logic](https://junglewise.ai/threats/cve-2026-112180-misp-contains-a-data-integrity-flaw-in-its-event-deletion-logic)
- [MISP event synchronization information disclosure via tag filtering](https://junglewise.ai/threats/cve-2026-112179-in-misp-the-event-synchronization-process-contained-a-logic)