CVE-2026-33193— Docmost vulnerable to stored XSS via MIME type spoofing
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I. Basic Information for CVE-2026-33193
Vulnerability Information
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Vulnerability Title
Docmost vulnerable to stored XSS via MIME type spoofing
Source: NVD (National Vulnerability Database)
Vulnerability Description
Docmost is open-source collaborative wiki and documentation software. Versions prior to 0.70.0 are vulnerable to a stored cross-site scripting (XSS) attack due to improper handling of MIME type spoofing (GHSL-2026-052). An attacker could exploit this flaw to inject malicious scripts, potentially compromising the security of users and data. Version 0.70.0 contains a patch.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/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
Docmost 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Docmost是Docmost开源的一个开协作维基和文档软件。 Docmost 0.70.0之前版本存在跨站脚本漏洞，该漏洞源于MIME类型欺骗处理不当，可能导致存储型跨站脚本攻击，危及用户和数据安全。
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-2026-33193
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · docmost · 2026-04-14 · 4 CVEs total
| CVE-2026-34212 | 5.4 MEDIUM | Docmost page content has stored XSS via unsanitized attachment URLs |
| CVE-2026-34213 | 5.4 MEDIUM | Docmost has cross-page attachment overwrite via flawed attachmentId overwrite validation |
| CVE-2026-33146 | 4.3 MEDIUM | Docmost's Public Share Search Exposes Metadata of Restricted Children |
IV. Related Vulnerabilities
Same product: docmost
- CVE-2026-40927
Docmost: XSS in Comments with JavaScript URI - CVE-2026-34213
Docmost has cross-page attachment overwrite via flawed attac - CVE-2026-34212
Docmost page content has stored XSS via unsanitized attachme - CVE-2026-33146
Docmost's Public Share Search Exposes Metadata of Restricted - CVE-2026-24045
Docmost Affected by Stored XSS in Public Share Page
Same vendor: docmost
- CVE-2026-40927
Docmost: XSS in Comments with JavaScript URI - CVE-2026-34213
Docmost has cross-page attachment overwrite via flawed attac - CVE-2026-34212
Docmost page content has stored XSS via unsanitized attachme - CVE-2026-33146
Docmost's Public Share Search Exposes Metadata of Restricted - CVE-2026-24045
Docmost Affected by Stored XSS in Public Share Page
Same weakness: CWE-79
- CVE-2026-8262
Devs Palace ERP Online chart-save cross site scripting - CVE-2026-8256
Devs Palace ERP Online mr-save cross site scripting - CVE-2026-8255
Devs Palace ERP Online add_new_customer cross site scripting - CVE-2026-8254
Devs Palace ERP Online sales_save cross site scripting - CVE-2026-8253
Devs Palace ERP Online purchase_save cross site scripting
V. Comments for CVE-2026-33193
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