Vulnerability in Xwiki
CVE-2023-26478
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.007 (50.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Xwiki
- Xwiki Xwiki-Platform — versions >= 14.3-rc-1, < 14.4.6, >= 14.5, < 14.9-rc-1
Weakness classification (CWE)
References
- github.com/xwiki/xwiki-platform/security/advisories/GHSA-8692-g6g9-gm5p (Vendor Advisory)
- github.com/xwiki/xwiki-platform/commit/3c73c59e39b6436b1074d8834cf276916010014d (Patch)
- jira.xwiki.org/browse/XWIKI-20180 (Exploit, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-26478?
- CVE-2023-26478 is a medium-severity vulnerability in Xwiki, classified under CWE-749. CVSS score: 6.6/10. Published 2023-03-02.
- How severe is CVE-2023-26478?
- Medium severity. CVSS v3 base score is 6.6 out of 10.