CVE-2026-53578

CRITICALPre-NVD 9.39.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This critical-severity CVE scores 9.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (20th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated
9.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 9.3Exploit: No code on recordExposed services: Not assessed

The CVE record names the fixed release — apply it.

Trilium is an open-source hierarchical note-taking application. In versions up to and including 0.103.0, the default-on "Safe import" filter sanitizes HTML only for text notes and excludes the mindMap note type, whose JSON content is stored without sanitization, allowing an attacker-supplied import archive to embed a payload that renders as arbitrary HTML. A mind map node can carry a dangerouslySetInnerHTML property that the Mind Elixir library assigns directly to a node's innerHTML, so a malicious note survives Safe import and executes script as soon as the victim opens the imported mind map. On the desktop client the Electron renderer runs with Node integration enabled, so the injected JavaScript escalates from cross-site scripting to full remote code execution on the victim's machine. This issue is fixed in version 0.104.0.

CVSS v3
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
58
EG Risk 58/100

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 (value × EchelonGraph’s weight)
Severity93% × 45%
The EG Score, 9.3 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 27, 2026

Last Modified

September 9, 2026

Advisory Details (2)

Auto-updated Oct 3, 2026
Fix named in the CVE record. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

Note Import to RCE via Mind Elixir dangerouslySetInnerHtml · Advisory · TriliumNext/Trilium · GitHub

https://github.com/TriliumNext/Trilium/security/advisories/GHSA-rj57-j38v-3577
GitHub commit

commit 15da3ff626c2 (TriliumNext/Trilium)

Fix landed in TriliumNext/Trilium commit 15da3ff626c2 — awaiting tagged release

https://github.com/TriliumNext/Trilium/commit/15da3ff626c21fbadbc980ebb39e2f97085503a4

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 56× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-10-14 01:59 UTCEG score recompute
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  3. 2026-10-12 22:16 UTCEG score recompute
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  5. 2026-10-12 15:57 UTCEG score recompute
  6. 2026-10-11 19:40 UTCEG score recompute
  7. 2026-10-11 16:55 UTCEG score recompute
  8. 2026-10-11 14:19 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  11. 2026-10-10 01:46 UTCEG score recompute
  12. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  13. 2026-10-09 02:56 UTCEG score recompute
  14. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  15. 2026-10-08 01:13 UTCEG score recompute
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  17. 2026-10-06 15:56 UTCEG score recompute
  18. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  19. 2026-10-05 20:56 UTCEG score recompute
  20. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  21. 2026-10-04 23:43 UTCEG score recompute
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  23. 2026-10-03 14:57 UTCEG score recompute
  24. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  25. 2026-10-02 18:52 UTCEG score recompute
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  1. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  2. 2026-10-01 19:52 UTCEG score recompute
  3. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  4. 2026-09-30 19:54 UTCEG score recompute
  5. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  6. 2026-09-29 16:22 UTCEG score recompute
  7. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  8. 2026-09-29 01:19 UTCEG score recompute
  9. 2026-09-28 21:12 UTCEG score recompute
  10. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  11. 2026-09-27 16:03 UTCEG score recompute
  12. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  13. 2026-09-26 18:24 UTCEG score recompute
  14. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  15. 2026-09-24 16:16 UTCEG score recompute
  16. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  17. 2026-09-23 19:53 UTCEG score recompute
  18. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  19. 2026-09-22 18:22 UTCEG score recompute
  20. 2026-09-21 21:47 UTCEG score recompute
  21. 2026-09-20 20:45 UTCEG score recompute
  22. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  23. 2026-09-19 18:16 UTCEG score recompute
  24. 2026-09-18 21:29 UTCEG score recompute
  25. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  26. 2026-09-17 20:54 UTCEG score recompute
  27. 2026-09-16 15:47 UTCEG score recompute
  28. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  29. 2026-09-16 07:39 UTCEG score recompute
  30. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  31. 2026-09-15 07:02 UTCEG score recompute
  32. 2026-09-13 18:21 UTCEG score recompute
  33. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  34. 2026-09-12 17:54 UTCEG score recompute
  35. 2026-09-11 17:28 UTCEG score recompute
  36. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  37. 2026-09-11 12:55 UTCEG score recompute
  38. 2026-09-10 12:19 UTCEG score recompute
  39. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  40. 2026-09-09 00:38 UTCEG score recompute
  41. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  42. 2026-09-07 19:09 UTCEG score recompute
  43. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  44. 2026-09-06 16:22 UTCEG score recompute
  45. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  46. 2026-09-05 15:52 UTCEG score recompute
  47. 2026-09-04 14:42 UTCEG score recompute
  48. 2026-09-04 06:31 UTCEG score recompute
  49. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  50. 2026-09-02 16:59 UTCEG score recompute
  51. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  52. 2026-09-01 16:12 UTCEG score recompute
  53. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  54. 2026-09-01 07:54 UTCEG score recompute
  55. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  56. 2026-08-31 19:33 UTCEG score recompute
  57. 2026-08-31 18:34 UTCEG score recompute
  58. 2026-08-30 20:51 UTCEG score recompute
  59. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  60. 2026-08-30 04:31 UTCEG score recompute
  61. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  62. 2026-08-28 23:53 UTCEG score recompute
  63. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  64. 2026-08-27 20:26 UTCEG score recompute
  65. 2026-08-27 20:15 UTCEG score recomputeFirst assessed: 9.3 CRITICAL
  66. 2026-08-27 20:13 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-53578?
CVE-2026-53578 is a critical-severity vulnerability; its CVE record was published on August 27, 2026. Trilium is an open-source hierarchical note-taking application. In versions up to and including 0.103.0, the default-on "Safe import" filter sanitizes HTML only for text notes and excludes the mindMap note type, whose JSON content is stored without sanitization, allowing an attacker-supplied import…
When was the CVE record for CVE-2026-53578 published?
The CVE record for CVE-2026-53578 was published on August 27, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 9, 2026; the record at its source may have been updated since.
Is CVE-2026-53578 actively exploited?
CVE-2026-53578 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53578?
CVE-2026-53578 has a CVSS base score of 9.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-53578?
The CVE record for CVE-2026-53578 names the fix: "This issue is fixed in version 0.104.0."

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