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CVE-2023-26478

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Date: March 2, 2023

XWiki Platform is a generic wiki platform. Starting in version 14.3-rc-1, "org.xwiki.store.script.TemporaryAttachmentsScriptService#uploadTemporaryAttachment" returns an instance of "com.xpn.xwiki.doc.XWikiAttachment". This class is not supported to be exposed to users without the "programing" right. "com.xpn.xwiki.api.Attachment" should be used instead and takes case of checking the user's rights before performing dangerous operations. This has been patched in versions 14.9-rc-1 and 14.4.6. There are no known workarounds for this issue.

Language: Java

Severity Score

Related Resources (6)

https://github.com/xwiki/xwiki-platform/commit/3c73c59e39b6436b1074d8834cf276916010014d
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-8692-g6g9-gm5p
https://github.com/xwiki/xwiki-platform
https://nvd.nist.gov/vuln/detail/CVE-2023-26478
https://jira.xwiki.org/browse/XWIKI-20180
https://www.mend.io/vulnerability-database/CVE-2023-26478

Severity Score

Weakness Type (CWE)

Exposed Dangerous Method or Function

CWE-749

Top Fix

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Upgrade Version

Upgrade to version org.xwiki.platform:xwiki-platform-store-filesystem-oldcore:14.4.6;org.xwiki.platform:xwiki-platform-store-filesystem-oldcore:14.9-rc-1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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