CVE-2026-73050

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 the color field in attribute-view select options, allowing stored cross-site scripting through eight unescaped render sites. Attackers can inject event-handler attributes by including quotation marks in the color value, executing arbitrary JavaScript when viewing databases containing the malicious select field.

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 XSS via select option color | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-stored-xss-via-select-option-color
github Patch Available🟡 PoC Available

Attribute-view select option colors are stored unvalidated and interpolated into style attributes without escaping at eight render sites, allowing stored cross-site scripting · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-m7cc-jh9q-wxg8

Vendor Advisories for CVE-2026-73050(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 48× in last 7d / 48× 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. 2026-08-21 05:12 UTCGHSA enrichment
  2. 2026-08-21 00:50 UTCEG score recompute
  3. 2026-08-21 00:50 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 20:30 UTCGHSA enrichment
  6. 2026-08-20 16:09 UTCGHSA enrichment
  7. 2026-08-20 11:46 UTCGHSA enrichment
  8. 2026-08-20 07:24 UTCGHSA enrichment
  9. 2026-08-20 03:03 UTCGHSA enrichment
  10. 2026-08-19 22:42 UTCGHSA enrichment
  11. 2026-08-19 18:21 UTCEG score recompute
  12. 2026-08-19 18:21 UTCGHSA enrichment
  13. 2026-08-19 17:04 UTCEPSS rescore
  14. 2026-08-19 12:44 UTCGHSA enrichment
  15. 2026-08-19 08:23 UTCGHSA enrichment
  16. 2026-08-19 04:02 UTCGHSA enrichment
  17. 2026-08-18 23:40 UTCGHSA enrichment
  18. 2026-08-18 19:18 UTCGHSA enrichment
  19. 2026-08-18 14:57 UTCEG score recompute
  20. 2026-08-18 14:57 UTCGHSA enrichment
  21. 2026-08-18 13:49 UTCEPSS rescore
  22. 2026-08-18 13:49 UTCEPSS rescore
  23. 2026-08-18 09:54 UTCGHSA enrichment
  24. 2026-08-18 05:32 UTCGHSA enrichment
  25. 2026-08-18 01:10 UTCGHSA enrichment
Show 23 more
  1. 2026-08-17 20:45 UTCEG score recompute
  2. 2026-08-17 20:45 UTCGHSA enrichment
  3. 2026-08-17 16:24 UTCEG score recompute
  4. 2026-08-17 16:24 UTCGHSA enrichment
  5. 2026-08-17 16:17 UTCEG score recompute
  6. 2026-08-17 16:17 UTCGHSA enrichment
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-17 13:37 UTCGHSA enrichment
  9. 2026-08-17 09:16 UTCGHSA enrichment
  10. 2026-08-17 04:56 UTCGHSA enrichment
  11. 2026-08-17 00:35 UTCGHSA enrichment
  12. 2026-08-16 20:14 UTCGHSA enrichment
  13. 2026-08-16 15:53 UTCEG score recompute
  14. 2026-08-16 15:53 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 11:32 UTCGHSA enrichment
  18. 2026-08-16 07:11 UTCGHSA enrichment
  19. 2026-08-16 02:50 UTCEG score recompute
  20. 2026-08-16 02:50 UTCGHSA enrichment
  21. 2026-08-15 22:29 UTCEG score recompute
  22. 2026-08-15 21:53 UTCEG score recompute
  23. 2026-08-15 21:52 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73050?
CVE-2026-73050 is a critical vulnerability published on August 15, 2026. SiYuan versions before v3.7.4 fail to validate or escape the color field in attribute-view select options, allowing stored cross-site scripting through eight unescaped render sites. Attackers can inject event-handler attributes by including quotation marks in the color value, executing arbitrary…
When was CVE-2026-73050 disclosed?
CVE-2026-73050 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-2026-73050 actively exploited?
CVE-2026-73050 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-2026-73050?
CVE-2026-73050 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2026-73050?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73050, 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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