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CVE-2026-48047— XWiki Platform vulnerable to potential arbitrary file writing using path traversal from (subwiki) admin

Quick assessment

Affected
xwiki xwiki-platform
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

XWiki Platform是XWiki基金会开源的一款一套用于创建Web协作应用程序的Wiki平台。 xwiki platform 9.6-rc-1版本至16.10.17之前版本、17.0.0-rc-1版本至17.4.9之前版本和17.5.0-rc-1版本至17.10.3之前版本存在路径遍历漏洞，该漏洞源于路径遍历问题，可能导致攻击者写入任意文件。

CVSS 5.9 · Medium EPSS 0.65% · P49

Affected Version Matrix 3

VendorProduct Version RangeStatus
xwiki xwiki-platform >= 9.6-rc-1, < 16.10.17 affected
>= 17.0.0-rc-1, < 17.4.9 affected
>= 17.5.0-rc-1, < 17.10.3 affected
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I. Basic Information for CVE-2026-48047

Vulnerability Information
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Vulnerability Title
XWiki Platform vulnerable to potential arbitrary file writing using path traversal from (subwiki) admin
Source: CVE Program / CVE List V5
Vulnerability Description
XWiki Platform WebJars API is a package for XWiki, a generic wiki platform. Starting with version 9.6-rc-1 and prior to versions 16.10.17, 17.4.9, and 17.10.3, a potential path traversal vulnerability allow an attacker who manages to get a malicious WebJar extension installed on the wiki to write arbitrary files. While the consequences could be severe like overriding configuration files and setting the superadmin password, the attack first requires that the attacker already has admin access to at least a subwiki to be able to install a malicious extension. Further, the attacker needs to publish a malicious extension in an extension repository that is configured in the instance. This vulnerability has been patched in XWiki 16.10.17, 17.4.9, 17.10.3, and 18.0.0RC1. XWiki is not aware of any workarounds except for being careful whom developers grant script and admin rights to.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
路径遍历：’../filedir’
Source: CVE Program / CVE List V5
Vulnerability Title
xwiki platform 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
XWiki Platform是XWiki基金会开源的一款一套用于创建Web协作应用程序的Wiki平台。 xwiki platform 9.6-rc-1版本至16.10.17之前版本、17.0.0-rc-1版本至17.4.9之前版本和17.5.0-rc-1版本至17.10.3之前版本存在路径遍历漏洞，该漏洞源于路径遍历问题，可能导致攻击者写入任意文件。
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 >= 9.6-rc-1, < 16.10.17 -

II. Public POCs for CVE-2026-48047

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III. Intelligence Information for CVE-2026-48047

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Patches & Fixes for CVE-2026-48047 (2)

Vendor Advisories for CVE-2026-48047 (1)

IV. Related Vulnerabilities

Same product: xwiki-platform
Same vendor: xwiki
Same weakness: CWE-24

V. Comments for CVE-2026-48047

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