CVE-2026-73044

CRITICALPre-NVD 9.09.0—
EchelonGraph scoreHIGH confidence

Score 9.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-16. a secondary CVSS source baseline 9.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.0Exploit: Elevated riskExposed: 0

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

SiYuan versions before v3.7.4 fail to validate or escape table column width values, allowing stored cross-site scripting injection into style attributes. Attackers can inject malicious payloads through the setAttrViewColWidth API that break out of style attributes and inject event handlers on every table cell, executing arbitrary code in the Electron renderer with Node integration enabled.

CVSS v3
9.0
EG Score
9.0(high)
EG Risk
57(Track*)
EG Risk 57/100SSVC: 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
Severity90% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (2)

Auto-updated Aug 15, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

SiYuan before v3.7.4 Stored Cross-Site Scripting via Column Width | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-stored-cross-site-scripting-via-column-width
github Patch Available🟡 PoC Available

Attribute-view column widths are stored without validation and interpolated into style attributes without escaping, allowing stored cross-site scripting in every table cell · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-rj55-w3xr-gj62

Vendor Advisories for CVE-2026-73044(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 43× in last 7d / 43× 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. 2026-08-20 11:34 UTCGHSA enrichment
  2. 2026-08-20 07:33 UTCGHSA enrichment
  3. 2026-08-20 03:34 UTCGHSA enrichment
  4. 2026-08-19 23:34 UTCGHSA enrichment
  5. 2026-08-19 19:34 UTCEG score recompute
  6. 2026-08-19 19:34 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 15:33 UTCGHSA enrichment
  9. 2026-08-19 11:32 UTCGHSA enrichment
  10. 2026-08-19 07:32 UTCGHSA enrichment
  11. 2026-08-19 03:33 UTCGHSA enrichment
  12. 2026-08-18 23:34 UTCGHSA enrichment
  13. 2026-08-18 19:34 UTCGHSA enrichment
  14. 2026-08-18 15:35 UTCEG score recompute
  15. 2026-08-18 15:35 UTCGHSA enrichment
  16. 2026-08-18 13:49 UTCEPSS rescore
  17. 2026-08-18 13:49 UTCEPSS rescore
  18. 2026-08-18 11:27 UTCGHSA enrichment
  19. 2026-08-18 07:28 UTCGHSA enrichment
  20. 2026-08-18 03:29 UTCGHSA enrichment
  21. 2026-08-17 23:27 UTCGHSA enrichment
  22. 2026-08-17 19:27 UTCEG score recompute
  23. 2026-08-17 19:27 UTCGHSA enrichment
  24. 2026-08-17 18:53 UTCGHSA enrichment
  25. 2026-08-17 14:31 UTCEG score recompute
Show 18 more
  1. 2026-08-17 14:31 UTCGHSA enrichment
  2. 2026-08-17 13:47 UTCEPSS rescore
  3. 2026-08-17 10:31 UTCGHSA enrichment
  4. 2026-08-17 06:32 UTCGHSA enrichment
  5. 2026-08-17 02:22 UTCGHSA enrichment
  6. 2026-08-16 22:23 UTCGHSA enrichment
  7. 2026-08-16 18:24 UTCEG score recompute
  8. 2026-08-16 18:24 UTCGHSA enrichment
  9. 2026-08-16 14:56 UTCEPSS rescore
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 14:25 UTCGHSA enrichment
  12. 2026-08-16 10:25 UTCGHSA enrichment
  13. 2026-08-16 06:26 UTCGHSA enrichment
  14. 2026-08-16 02:28 UTCEG score recompute
  15. 2026-08-16 02:28 UTCGHSA enrichment
  16. 2026-08-15 22:29 UTCEG score recompute
  17. 2026-08-15 21:53 UTCEG score recompute
  18. 2026-08-15 21:52 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73044?
CVE-2026-73044 is a critical vulnerability published on August 15, 2026. SiYuan versions before v3.7.4 fail to validate or escape table column width values, allowing stored cross-site scripting injection into style attributes. Attackers can inject malicious payloads through the setAttrViewColWidth API that break out of style attributes and inject event handlers on every…
When was CVE-2026-73044 disclosed?
CVE-2026-73044 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73044 actively exploited?
CVE-2026-73044 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 83.7% of all scored CVEs.
What is the CVSS score of CVE-2026-73044?
CVE-2026-73044 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2026-73044?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73044, 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

Explore the affected products and dependency analysis for CVE-2026-73044

Explore →

Is Your Infrastructure Affected by CVE-2026-73044?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs