# CVE-2026-93296: MISP Overmind stored cross-site scripting in statistics views

Source: https://junglewise.ai/threats/cve-2026-93296-misp-overmind-stored-cross-site-scripting-in-statistics-views  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-17. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-93296 · Severity: info · Published 2026-09-17

MISP is an open-source threat intelligence platform used by organizations to share and analyze cyber threat data. The Overmind theme contains a stored XSS vulnerability in dashboard statistics views where malicious code can be injected through object or category names and executed when other users view the dashboard. An authenticated attacker could hijack sessions, steal sensitive threat intelligence data, or perform unauthorized actions on behalf of victims.

Technologies: [Misp](https://junglewise.ai/threats/technologies/misp). Vendors: [Misp](https://junglewise.ai/threats/vendors/misp).

## Quick answers

**Is CVE-2026-93296 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-93296 being exploited in the wild.

**How severe is CVE-2026-93296?** Informational severity, published 17 September 2026.

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

**Is there a fix for CVE-2026-93296?** A patch was published on 2026-09-17: Fix committed to repository (commit 382188d) Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-93296 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-93296?** Check whether you run 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 is a stored cross-site scripting (XSS) flaw in the Overmind theme's event General card and server/feed preview card components. The vulnerable code directly concatenates object names and category keys into innerHTML strings without HTML-encoding, allowing script injection. An attacker with low-level authenticated access to create or modify MISP objects can craft a name containing malicious markup; when any other user views the affected dashboard pages, the injected JavaScript executes in the victim's browser context. The fix involves passing legend label sinks through an escapeHtml function to prevent markup interpretation.

## Affected products

- MISP MISP

## Timeline

- 2026-09-17: disclosed
- 2026-09-17: patched: Fix committed to repository (commit 382188d)

## References

- [https://github.com/MISP/misp/commit/382188d2f](https://github.com/MISP/misp/commit/382188d2f)

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- [MISP authorization flaw in correlation handling](https://junglewise.ai/threats/cve-2026-104912-misp-contains-an-authorization-flaw-in-its-correlation-handling)
- [MISP improper input validation in decaying model import](https://junglewise.ai/threats/cve-2026-104908-misp-contains-an-improper-input-validation-vulnerability-in-the)
- [MISP reflected XSS in taxonomy tag confirmation forms](https://junglewise.ai/threats/cve-2026-103662-misp-contains-a-reflected-cross-site-scripting-xss-vulnerability)