CVE-2026-44588
published 2026-05-14CVE-2026-44588: SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, he tooltip mouseover handler in app/src/block/popover.ts reads aria-label via…
PriorityP353critical9.4CVSS 4.0
AVNACLATNPRNUIAVCHVIHVAHSCHSIHSAHEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
EPSS
0.51%
42.4th percentile
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, he tooltip mouseover handler in app/src/block/popover.ts reads aria-label via getAttribute and passes it through decodeURIComponent before assigning to messageElement.innerHTML in app/src/dialog/tooltip.ts:41. The encoder used at the producer side, escapeAriaLabel in app/src/util/escape.ts:19-25, only handles HTML special characters (", ', element, and the onerror handler fires. Because the renderer runs with nodeIntegration: true, contextIsolation: false, webSecurity: false (app/electron/main.js:407-411), require('child_process') is reachable from the injected handler, escalating to arbitrary code execution.This vulnerability is fixed in 3.7.0.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| github.com | siyuan-note_siyuan_kernel | >= 0 < 0.0.0-20260628153353-2d5d72223df4 | 0.0.0-20260628153353-2d5d72223df4 |
| github.com | siyuan-note_siyuan_kernel | 0 – 0.0.0-20260421031503-96dfe0bea474 | — |
| siyuan-note | siyuan | < 3.7.0 | 3.7.0 |
CVSS provenance
nvdv4.09.4CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
ghsa9.4CRITICAL
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GHSA
SiYuan: Stored XSS to RCE via Unsanitized Attribute View Asset Cell Content
ghsa·2026-07-10·CVSS 9.4
CVE-2026-50551 [CRITICAL] CWE-79 SiYuan: Stored XSS to RCE via Unsanitized Attribute View Asset Cell Content
SiYuan: Stored XSS to RCE via Unsanitized Attribute View Asset Cell Content
SiYuan v3.6.5 and earlier versions contain 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 is a neighbor-bug of CVE-2026-44588: the fix for -44588 used `escapeAriaLabel()` (double-escapes `${item.name || item.content}`;
The `>${item.name || item.content}` portion is raw user input with zero escaping.
`app/src/protyle/render/av/blockAttr.ts:93` (even worse - completely unescaped):
html += ``;
Rendered via `action.ts:860`: `cellElement.innerHTML = renderCell(...)` results in immediate XSS on page load.
### Sink 2 (Hover-triggered XSS via aria-label round-trip)
- Same lines e
GHSA
SiYuan: Electron Renderer RCE via decodeURIComponent-driven tooltip XSS in aria-label sink (incomplete fix for CVE-2026-34585)
ghsa·2026-05-08·CVSS 8.2
CVE-2026-44588 [HIGH] CWE-116 SiYuan: Electron Renderer RCE via decodeURIComponent-driven tooltip XSS in aria-label sink (incomplete fix for CVE-2026-34585)
SiYuan: Electron Renderer RCE via decodeURIComponent-driven tooltip XSS in aria-label sink (incomplete fix for CVE-2026-34585)
## Summary
The tooltip mouseover handler in `app/src/block/popover.ts` reads `aria-label` via `getAttribute` and passes it through `decodeURIComponent` before assigning to `messageElement.innerHTML` in `app/src/dialog/tooltip.ts:41`. The encoder used at the producer side, `escapeAriaLabel` in `app/src/util/escape.ts:19-25`, only handles HTML special characters (`"`, `'`, `` element, and the `onerror` handler fires.
Because the renderer runs with `nodeIntegration: true, contextIsolation: false, webSecurity: false` (`app/electron/main.js:407-411`), `require('child_process')` is reachable from the injected handler, escalating to arbitrary code execution.
Doc title
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-05-14
Published