SiYuan through 3.8.4 Stored XSS via Heading Style Attribute
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 0.4%
exploitation probability
0.4%top 65% of all CVEs
observed exploitation
nono source reports it
SiYuan through 3.8.4 fails to escape heading style attributes when rendering outline and bookmark dock HTML, allowing stored cross-site scripting. Attackers can supply crafted notebooks or call administrative endpoints to inject malicious style values that execute in the Electron renderer with full system access.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
siyuan-note · siyuanReferences
https://github.com/siyuan-note/siyuanhttps://github.com/siyuan-note/siyuan/blob/v3.8.4/app/src/util/Tree.ts#L133https://github.com/siyuan-note/siyuan/blob/v3.8.4/app/src/util/Tree.ts#L194https://github.com/siyuan-note/siyuan/blob/v3.8.4/kernel/model/render.go#L71-L76https://github.com/siyuan-note/siyuan/security/advisories/GHSA-928g-4hfq-qwvxhttps://www.vulncheck.com/advisories/siyuan-through-3.8.4-stored-xss-via-heading-style-attribute