CVE-2026-48047
Published:August 07, 2026
Updated:September 01, 2026
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.
Affected Packages
https://github.com/xwiki/xwiki-platform.git (GITHUB):
Affected version(s) >=xwiki-platform-9.6-rc-1 <xwiki-platform-16.10.17Fix Suggestion:
Update to version xwiki-platform-16.10.17https://github.com/xwiki/xwiki-platform.git (GITHUB):
Affected version(s) >=xwiki-platform-17.5.0 <xwiki-platform-17.10.3Fix Suggestion:
Update to version xwiki-platform-17.10.3https://github.com/xwiki/xwiki-platform.git (GITHUB):
Affected version(s) >=xwiki-platform-17.0.0-rc-1 <xwiki-platform-17.4.9Fix Suggestion:
Update to version xwiki-platform-17.4.9org.xwiki.platform:xwiki-platform-webjars-api (JAVA):
Affected version(s) >=9.6-rc-1 <16.10.17Fix Suggestion:
Update to version 16.10.17org.xwiki.platform:xwiki-platform-webjars-api (JAVA):
Affected version(s) >=17.5.0 <17.10.3Fix Suggestion:
Update to version 17.10.3org.xwiki.platform:xwiki-platform-webjars-api (JAVA):
Affected version(s) >=17.0.0-rc-1 <17.4.9Fix Suggestion:
Update to version 17.4.9Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
Path Traversal: '../filedir'
EPSS
Base Score:
0.34