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EUVD-2026-220985

2026-10-08T12:29:14.632094+00:00

EUVD-2026-220985

fkie_cve-2023-26478

2026-10-08T12:29:14.632132+00:00

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.

GHSA-8692-g6g9-gm5p — xwiki contains Exposed Dangerous Method or Function

2026-10-08T12:29:14.632169+00:00

Affected: Maven: org.xwiki.platform:xwiki-platform-store-filesystem-oldcore

### Impact `org.xwiki.store.script.TemporaryAttachmentsScriptService#uploadTemporaryAttachment` is returning 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.

### Patches This has been patched in the version 14.9-rc-1 and 14.4.6.

### Workarounds There's no workaround for this issue.

### References https://jira.xwiki.org/browse/XWIKI-20180

### For more information If you have any questions or comments about this advisory:

* Open an issue in [JIRA](https://jira.xwiki.org/) * Email us at [security ML](mailto:security@xwiki.org)

gsd-2023-26478

2026-10-08T12:29:14.632204+00:00

gsd-2023-26478