CVE-2026-23645

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Source
https://cve.org/CVERecord?id=CVE-2026-23645
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23645.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23645
Aliases
Downstream
Related
Published
2026-01-16T19:20:06.744Z
Modified
2026-07-15T01:49:10.342550042Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
SiYuan Vulnerable to Stored Cross-Site Scripting (XSS) via Unrestricted SVG File Upload
Details

SiYuan is self-hosted, open source personal knowledge management software. Prior to 3.5.4-dev2, a Stored Cross-Site Scripting (XSS) vulnerability exists in SiYuan Note. The application does not sanitize uploaded SVG files. If a user uploads and views a malicious SVG file (e.g., imported from an untrusted source), arbitrary JavaScript code is executed in the context of their authenticated session. This vulnerability is fixed in 3.5.4-dev2.

Database specific 
{
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23645.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/siyuan-note/siyuan

Affected ranges

Type
GIT
Repo
https://github.com/siyuan-note/siyuan
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
d5d10dd41b0c9090adc63062c77185e711d59030
Introduced
f03400aa41894b5fb008059e16c14927ffed439a
Fixed
11115da3d0de950593ee4ce375cf7f9018484388
Database specific 
{
    "cpe": [
        "cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:b3log:siyuan:3.5.4:dev1:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.5.4"
        },
        {
            "introduced": "3.5.4-dev1"
        },
        {
            "last_affected": "3.5.4-dev1"
        }
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING",
        "REFERENCES"
    ]
}

Affected versions

3.*
3.5.4-dev1
v3.*
v3.5.4-dev1
v3.5.4-dev2
v3.5.4-dev3
v3.5.4-dev5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23645.json"