High severity · published Mar 2, 2023
CVE-2023-26478
XWiki Platform is a generic wiki platform
8.1
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XW
Xwiki · Xwiki
14.3 before 14.4.6; 14.5 before 14.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26478
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-26478
Patch
https://github.com/xwiki/xwiki-platform/commit/3c73c59e39b6436b1074d8834cf276916010014d
Vendor Advisory
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-8692-g6g9-gm5p
Exploit
https://jira.xwiki.org/browse/XWIKI-20180
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