THREATOPS
THREAT OPS › Threat News › [NVD] CVE-2026-73042 (CRITICAL 9.0) — SiYuan before v3.7.4 fails to properly escape database menu metadata in HTML interpolation, allowing stored values to execute script when users open group, view, or field-edit menus. Attackers can inject markup through field descriptions or names that close containing elements an

[NVD] CVE-2026-73042 (CRITICAL 9.0) — SiYuan before v3.7.4 fails to properly escape database menu metadata in HTML interpolation, allowing stored values to execute script when users open group, view, or field-edit menus. Attackers can inject markup through field descriptions or names that close containing elements an

mednvdPublished 2026-08-15

CVE-2026-73042 CVSS: 9.0 CRITICAL Published: 2026-08-15T22:16:54.030

SiYuan before v3.7.4 fails to properly escape database menu metadata in HTML interpolation, allowing stored values to execute script when users open group, view, or field-edit menus. Attackers can inject markup through field descriptions or names that close containing elements and execute arbitrary code via event handlers, reach

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-73042