CVE-2026-50551

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 64% 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
9.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.9Exploit: NoneExposed: 0

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

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan contains a stored cross-site scripting (XSS) vulnerability in the Attribute View (database) asset cell renderer that escalates to remote code execution (RCE) in the Electron desktop client. This vulnerability is fixed in 3.7.0.

CVSS v3
9.9
EG Score
9.9(medium)
EPSS
35.6%
KEV
Not listed

Published

June 24, 2026

Last Modified

June 25, 2026

Advisory Details (1)

Auto-updated Jul 11, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Stored XSS to RCE via Unsanitized Attribute View Asset Cell Content · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-56mp-4f3v-fgj2

Vendor Advisories for CVE-2026-50551(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 55× in last 7d / 161× 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.

Showing the most recent 100 of 161 total refreshes for this CVE.

  1. 2026-07-15 21:51 UTCEG score recompute
  2. 2026-07-15 17:53 UTCEG score recompute
  3. 2026-07-15 16:57 UTCEPSS rescore
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  17. 2026-07-13 22:31 UTCEPSS rescore
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  25. 2026-07-13 03:09 UTCEG score recompute
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  1. 2026-07-12 23:16 UTCEG score recompute
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  6. 2026-07-12 05:46 UTCEPSS rescore
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  13. 2026-07-11 08:27 UTCEPSS rescore
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  15. 2026-07-11 05:27 UTCEG score recompute
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  24. 2026-07-09 19:12 UTCEG score recompute
  25. 2026-07-09 19:10 UTCEPSS rescore
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  27. 2026-07-09 15:24 UTCEG score recompute
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  34. 2026-07-08 15:16 UTCEPSS rescore
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  36. 2026-07-08 12:49 UTCEG score recompute
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  40. 2026-07-07 21:41 UTCEG score recompute
  41. 2026-07-07 17:54 UTCEG score recompute
  42. 2026-07-07 13:46 UTCEPSS rescore
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  44. 2026-07-07 13:43 UTCEG score recompute
  45. 2026-07-07 09:55 UTCEG score recompute
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  50. 2026-07-06 16:27 UTCEPSS rescore
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  62. 2026-07-05 02:30 UTCEPSS rescore
  63. 2026-07-04 23:41 UTCEG score recompute
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  68. 2026-07-04 06:31 UTCEPSS rescore
  69. 2026-07-04 04:43 UTCEG score recompute
  70. 2026-07-04 00:56 UTCEG score recompute
  71. 2026-07-03 21:09 UTCEG score recompute
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  73. 2026-07-03 13:34 UTCEG score recompute
  74. 2026-07-03 09:47 UTCEG score recompute
  75. 2026-07-03 06:00 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-50551?
CVE-2026-50551 is a critical vulnerability published on June 24, 2026. SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan contains a stored cross-site scripting (XSS) vulnerability in the Attribute View (database) asset cell renderer that escalates to remote code execution (RCE) in the Electron desktop client. This vulnerability is…
When was CVE-2026-50551 disclosed?
CVE-2026-50551 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50551 actively exploited?
CVE-2026-50551 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-50551?
CVE-2026-50551 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-50551?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50551, 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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