CVE-2026-33137— XWiki Platform has an Unauthenticated XAR Import via REST /wikis/{wikiName}
Affected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| xwiki | xwiki-platform | >= 15.10.6, < 16.10.17 | affected |
>= 17.0.0-rc-1, < 17.4.9 | affected | ||
>= 17.5.0, < 17.10.3 | affected | ||
>= 18.0.0-rc-1, < 18.1.0-rc-1 | affected |
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I. Basic Information for CVE-2026-33137
Vulnerability Information
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Vulnerability Title
XWiki Platform has an Unauthenticated XAR Import via REST /wikis/{wikiName}
Source: CVE Program / CVE List V5
Vulnerability Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. XWiki Platform is a generic wiki platform. In versions starting with 15.10.6 and prior to 18.1.0-rc-1, 17.10.3, 17.4.9, and 16.10.17, the POST /wikis/{wikiName} API executes a XAR import without performing any authentication or authorization checks, allowing an unauthenticated attacker to create or update documents in the target wiki. This vulnerability has been patched in XWiki 16.10.17, 17.4.9, 17.10.3, 18.0.1 and 18.1.0-rc-1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
XWiki Platform 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
XWiki Platform是XWiki开源的一套用于创建Web协作应用程序的Wiki平台。 XWiki Platform 18.1.0-rc-1之前版本、17.10.3之前版本、17.4.9之前版本和16.10.17之前版本存在安全漏洞，该漏洞源于POST /wikis/{wikiName} API执行XAR导入时未进行身份验证或授权检查，可能导致未经身份验证的攻击者在目标wiki中创建或更新文档。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| xwiki | xwiki-platform | >= 15.10.6, < 16.10.17 | - |
II. Public POCs for CVE-2026-33137
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-33137 (2)
Vendor Advisories for CVE-2026-33137 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-33137
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