CVE-2026-105784

MEDIUMPre-NVD 4.64.6
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 4.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (8th 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
4.6EG
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: 0.2%CVSS: 4.6Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.13, selecting a note containing a jsoncanvas fence causes the whiteboard text and file-node components in packages/app-desktop/gui/NoteEditor/NoteBody/WhiteboardEditor/nodes/TextNode.tsx and packages/app-desktop/gui/NoteEditor/NoteBody/WhiteboardEditor/nodes/FileNode.tsx to render card content with the full Markdown renderer. The components insert the resulting HTML into the main application document through dangerouslySetInnerHTML. A malicious note can inject style elements and remote CSS imports that modify trusted application chrome, signal when the note is opened, and potentially disclose exposed attribute values. Content Security Policy blocks inline script execution, so the supported impact is CSS injection and UI redressing rather than code execution. This issue is fixed in version 3.7.13.

CVSS v3
4.6
EG Score
4.6MEDIUMmedium confidence
EG Risk
37
EG Risk 37/100

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)
Severity46% × 45%
The EG Score, 4.6 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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
8th
KEV
Not listed

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

A fix is available. 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

October 5, 2026

Last Modified

October 6, 2026

Advisory Details (4)

Auto-updated Oct 5, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
GitHub release Patch Available

v3.7.13

Patch available: laurent22/joplin v3.7.13 (pre-release)

https://github.com/laurent22/joplin/releases/tag/v3.7.13
GitHub commit

commit 7fb9ec93e47c (laurent22/joplin)

Fix landed in laurent22/joplin commit 7fb9ec93e47c — awaiting tagged release

https://github.com/laurent22/joplin/commit/7fb9ec93e47cec39a548a76e03d7ad660ca0f123
GitHub pull request

Desktop: Strip style elements from whiteboard card content

Fix merged in laurent22/joplin PR #16275 on 2026-08-22 — awaiting tagged release

https://github.com/laurent22/joplin/pull/16275
GitHub advisoryMentions a patch (unverified)

Whiteboard note content is rendered into the main application document, bypassing the note-viewer origin isolation and allowing CSS injection with a remote-controlled exfiltration channel · Advisory · laurent22/joplin · GitHub

https://github.com/laurent22/joplin/security/advisories/GHSA-6h4j-86j4-x4q4

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 19× 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. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-12 16:39 UTCEG score recompute
  3. 2026-10-11 20:15 UTCEG score recompute
  4. 2026-10-11 18:27 UTCEG score recompute
  5. 2026-10-11 15:01 UTCEG score recompute
  6. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  8. 2026-10-10 19:37 UTCEG score recompute
  9. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-08 17:13 UTCEG score recompute
  11. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-10-07 16:03 UTCEG score recompute
  14. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-10-06 14:31 UTCEG score recompute
  16. 2026-10-06 13:30 UTCEG score recompute
  17. 2026-10-06 00:26 UTCEG score recompute
  18. 2026-10-05 23:27 UTCEG score recomputeFirst assessed: 4.6 MEDIUM
  19. 2026-10-05 23:25 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-105784?
CVE-2026-105784 is a medium-severity vulnerability; its CVE record was published on October 5, 2026. Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.13, selecting a note containing a jsoncanvas fence causes the whiteboard text and file-node components in…
When was the CVE record for CVE-2026-105784 published?
The CVE record for CVE-2026-105784 was published on October 5, 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 October 6, 2026; the record at its source may have been updated since.
Is CVE-2026-105784 actively exploited?
CVE-2026-105784 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-105784?
CVE-2026-105784 has a CVSS base score of 4.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-105784?
A fix for CVE-2026-105784 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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