Vulnerability Details : CVE-2023-26478
Potential exploit
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.
Products affected by CVE-2023-26478
- cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
- cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-26478
0.32%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 54 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-26478
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
2.8
|
5.2
|
NIST | |
6.6
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L |
2.3
|
3.7
|
GitHub, Inc. |
CWE ids for CVE-2023-26478
-
The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2023-26478
-
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-8692-g6g9-gm5p
Exposed Dangerous Method or Function in org.xwiki.platform:xwiki-platform-store-filesystem-oldcore · Advisory · xwiki/xwiki-platform · GitHubVendor Advisory
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https://jira.xwiki.org/browse/XWIKI-20180
[XWIKI-20180] TemporaryAttachmentsScriptService#uploadTemporaryAttachment return an XWikiAttachment instance - XWiki.org JIRAExploit;Issue Tracking;Vendor Advisory
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https://github.com/xwiki/xwiki-platform/commit/3c73c59e39b6436b1074d8834cf276916010014d
XWIKI-20180: TemporaryAttachmentsScriptService#uploadTemporaryAttachm… · xwiki/xwiki-platform@3c73c59 · GitHubPatch
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