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.
EPSS: 0.007 (48.3th percentile) — read the EPSS interpretation.
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.
Affected products
- Xwiki
- Xwiki Xwiki-platform — versions >= 14.3-rc-1, < 14.4.6, >= 14.5, < 14.9-rc-1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Exploit, x_refsource_MISC, 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.