CVE-2026-15505

LOWPre-NVD 3.53.5—
EchelonGraph scoreHIGH confidence

Score 3.5 from GitHub Security Advisory (severity: LOW) published 2026-07-12. a secondary CVSS source baseline 3.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
3.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 3.5Exploit: NoneExposed: 0

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

A weakness has been identified in vnotex vnote up to 3.20.1. Impacted is an unknown function of the file /src/data/extra/web/js/markdownit.js of the component YAML Frontmatter. This manipulation of the argument p_metaData causes cross site scripting. The attack may be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
3.5
EG Score
3.5(high)
EPSS
9.4%
KEV
Not listed

Published

July 12, 2026

Last Modified

July 14, 2026

References (4)

Vendor Advisories for CVE-2026-15505(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 10× 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. 2026-07-15 17:49 UTCEG score recompute
  2. 2026-07-15 17:49 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-14 15:20 UTCNVD updateCVSS v4 → 2
  6. 2026-07-14 15:05 UTCMITRE cvelistV5CVSS v4 → 5.1
  7. 2026-07-13 22:30 UTCEPSS rescore
  8. 2026-07-12 20:16 UTCNVD updateCVSS v4 → 2
  9. 2026-07-12 19:23 UTCEG score recompute
  10. 2026-07-12 19:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15505?
CVE-2026-15505 is a low vulnerability published on July 12, 2026. A weakness has been identified in vnotex vnote up to 3.20.1. Impacted is an unknown function of the file /src/data/extra/web/js/markdownit.js of the component YAML Frontmatter. This manipulation of the argument p_metaData causes cross site scripting. The attack may be initiated remotely. The vendor…
When was CVE-2026-15505 disclosed?
CVE-2026-15505 was first published in the National Vulnerability Database on July 12, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15505 actively exploited?
CVE-2026-15505 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-15505?
CVE-2026-15505 has a CVSS v3 base score of 3.5 (NVD).
How do I remediate CVE-2026-15505?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15505, 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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