Is CVE-2026-32940 actively exploited?

No active exploitation of CVE-2026-32940 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-32940 be exploited remotely?

Yes. CVE-2026-32940 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-32940?

CVE-2026-32940 has a CVSS score of 6.1 (MEDIUM).

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MEDIUM

CVE-2026-32940

CWE-79Published: March 20, 2026· Updated: Mar 23, 2026

6.1

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:14.9th

Official Description

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, SanitizeSVG has an incomplete blocklist — it blocks data:text/html and data:image/svg+xml in href attributes but misses data:text/xml and data:application/xml, both of which can render SVG with JavaScript execution. The unauthenticated /api/icon/getDynamicIcon endpoint serves user-controlled input (via the content parameter) directly into SVG markup using fmt.Sprintf with no escaping, served as Content-Type: image/svg+xml. This creates a click-through XSS: a victim navigates to a crafted URL, sees an SVG with an injected link, and clicking it triggers JavaScript via the bypassed MIME types. The attack requires direct navigation to the endpoint or <object>/<embed> embedding, since <img> tag rendering in the frontend doesn't allow interactive links. This issue has been fixed in version 3.6.1.

NVD Source

Technical Analysis

CVE-2026-32940 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.