Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV N L N L P H H N 8.5 .0039 30.7 —
AFFECTED Product Versions Fixed misp unspecified – —
TIMELINE Sep 17 Reserved by CIRCL Sep 17 Published (CNA: CIRCL) Sep 22 RESCORED — CVE-2026-93296 (misp). CVSS 5.1 → 8.5 (NVD).
MISP contains a stored cross-site scripting (XSS) vulnerability in the Overmind theme's statistics views. The event General card and the server/feed preview card constructed donut chart legend labels by directly concatenating object name or category keys into an innerHTML string without HTML-encoding. Because MISP object names are user-controllable by any authenticated user with sufficient permissions to create or modify such objects, an attacker could craft a name containing malicious markup. When any other user viewed the affected Overmind dashboard, the injected markup would be interpreted as live HTML/JavaScript in the victim's browser, executing in the context of the MISP application origin. This could allow session hijacking, data exfiltration, or arbitrary actions performed on behalf of the victim. The vulnerability requires the attacker to have low-level authenticated access to create or rename an object whose name is rendered in the legend, and the victim to view the Overmind event or server preview page. No special browser conditions or race conditions are required.
| Date | Event | Detail |
|---|---|---|
| September 17, 2026 | Reserved | Reserved by CIRCL |
| September 17, 2026 | Published | Published (CNA: CIRCL) |
| September 22, 2026 | RESCORED | RESCORED — CVE-2026-93296 (misp). CVSS 5.1 → 8.5 (NVD). |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| misp | misp | — | unspecified | — |
Authoritative record: CVE-2026-93296 at cve.org
Vendors: misp
Weaknesses: CWE-79
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-93296 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
