CVE-2026-93296

HIGHPre-NVD 8.58.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 70% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 4 sources updated this week
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.5
EG Score
8.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity85% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

September 17, 2026

Last Modified

September 22, 2026

Advisory Details (1)

Auto-updated Sep 17, 2026
Patch available. Sources: github_commit.
github_commit Patch Available

commit 382188d2f (MISP/misp)

Patch available: MISP/misp v2.5.47 (contains commit 382188d2f)

https://github.com/MISP/misp/commit/382188d2f

Vendor Advisories for CVE-2026-93296(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 28× in last 7d / 34× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-25 02:52 UTCGHSA enrichment
  2. 2026-09-24 15:49 UTCEG score recompute
  3. 2026-09-24 15:49 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 04:46 UTCEG score recompute
  6. 2026-09-24 04:46 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 17:43 UTCGHSA enrichment
  9. 2026-09-23 06:41 UTCGHSA enrichment
  10. 2026-09-22 19:38 UTCEG score recompute
  11. 2026-09-22 19:38 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 08:34 UTCEG score recompute
  14. 2026-09-22 08:34 UTCGHSA enrichment
  15. 2026-09-22 07:41 UTCEG score recompute▲ 3.40
  16. 2026-09-22 07:41 UTCGHSA enrichment
  17. 2026-09-22 07:40 UTCMITRE cvelistV5CVSS v3 → 8.5 · CVSS v4 → 8.5 · severity → HIGH
  18. 2026-09-21 21:39 UTCEG score recompute
  19. 2026-09-21 21:39 UTCGHSA enrichment
  20. 2026-09-21 21:09 UTCEPSS rescore
  21. 2026-09-20 21:06 UTCEG score recompute
  22. 2026-09-20 21:06 UTCGHSA enrichment
  23. 2026-09-20 20:16 UTCEPSS rescore
  24. 2026-09-19 20:32 UTCEG score recompute
  25. 2026-09-19 20:32 UTCGHSA enrichment
Show 9 more
  1. 2026-09-18 19:59 UTCEG score recompute
  2. 2026-09-18 19:59 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-17 19:26 UTCEG score recompute
  5. 2026-09-17 19:26 UTCGHSA enrichment
  6. 2026-09-17 18:29 UTCEG score recompute
  7. 2026-09-17 17:35 UTCEG score recompute
  8. 2026-09-17 16:36 UTCEG score recompute
  9. 2026-09-17 16:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-93296?
CVE-2026-93296 is a high vulnerability published on September 17, 2026. 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…
When was CVE-2026-93296 disclosed?
CVE-2026-93296 was first published in the National Vulnerability Database on September 17, 2026, with the most recent update on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-93296 actively exploited?
CVE-2026-93296 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 69.8% of all scored CVEs.
What is the CVSS score of CVE-2026-93296?
CVE-2026-93296 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-93296?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-93296, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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