CVE-2026-28683— Gokapi: Stored XSS in SVG Hotlinks
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I. Basic Information for CVE-2026-28683
Vulnerability Information
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Vulnerability Title
Gokapi: Stored XSS in SVG Hotlinks
Source: NVD (National Vulnerability Database)
Vulnerability Description
Gokapi is a self-hosted file sharing server with automatic expiration and encryption support. Prior to version 2.2.3, if a malicious authenticated user uploads SVG and creates a hotlink for it, they can achieve stored XSS. This issue has been patched in version 2.2.3.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Gokapi 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gokapi是Marc Bulling个人开发者的一个轻量级的自托管Firefox发送替代方案。 Gokapi 2.2.3之前版本存在跨站脚本漏洞，该漏洞源于恶意经过身份验证的用户上传SVG并创建热链接，可能导致存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-28683
| # | POC Description | Source Link | Shenlong Link |
|---|
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- Release v2.2.3 · Forceu/Gokapi · GitHubx_refsource_MISC
- Stored XSS in SVG Hotlinks · Advisory · Forceu/Gokapi · GitHubx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-28683
Same Patch Batch · Forceu · 2026-03-06 · 5 CVEs total
| CVE-2026-28682 | 6.4 MEDIUM | Gokapi: Data Leak in Upload Status Stream |
| CVE-2026-29061 | 5.4 MEDIUM | Gokapi: Privilege escalation via incomplete API-key permission revocation on user rank dem |
| CVE-2026-29060 | 5.0 MEDIUM | Gokapi: Privilege escalation with auth token |
| CVE-2026-29084 | 4.6 MEDIUM | Gokapi: CSRF in Login Endpoint |
IV. Related Vulnerabilities
Same product: Gokapi
- CVE-2026-30961
Gokapi's File Request MaxSize Limit Bypassed via Multi-Chunk - CVE-2026-30955
Gokapi vulnerable to DoS in E2E Metadata Parser - CVE-2026-30943
Gokapi has Privilege Escalation in File Replace - CVE-2026-29084
Gokapi: CSRF in Login Endpoint - CVE-2026-29061
Gokapi: Privilege escalation via incomplete API-key permissi
Same vendor: Forceu
- CVE-2026-30961
Gokapi's File Request MaxSize Limit Bypassed via Multi-Chunk - CVE-2026-30955
Gokapi vulnerable to DoS in E2E Metadata Parser - CVE-2026-30943
Gokapi has Privilege Escalation in File Replace - CVE-2026-29084
Gokapi: CSRF in Login Endpoint - CVE-2026-29061
Gokapi: Privilege escalation via incomplete API-key permissi
Same weakness: CWE-79
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V. Comments for CVE-2026-28683
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