CVE-2023-36477

moderate-risk
Published 2023-06-30

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with edit rights can edit all pages in the `CKEditor' space. This makes it possible to perform a variety of harmful actions, such as removing technical documents, leading to loss of service and editing the javascript configuration of CKEditor, leading to persistent XSS. This issue has been patched in XWiki 14.10.6 and XWiki 15.1. This issue has been patched on the CKEditor Integration extension 1.64.9 for XWiki version older than 14.6RC1. Users are advised to upgrade. Users unable to upgrade may manually address the issue by restricting the `edit` and `delete` rights to a trusted user or group (e.g. the `XWiki.XWikiAdminGroup` group), implicitly disabling those rights for all other users. See commit `9d9d86179` for details.

Do I need to act?

~
2.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.0/10 Critical
NETWORK / LOW complexity

Affected Products (4)

Ckeditor Integration

Affected Vendors

Xwiki

References (8)

Patch https://github.com/xwiki/xwiki-platform/commit/9d9d86179457cb8dc48b4491510537878...
Exploit https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-793w-g325-hrw2
Exploit https://jira.xwiki.org/browse/CKEDITOR-508
Exploit https://jira.xwiki.org/browse/XWIKI-20590
Patch https://github.com/xwiki/xwiki-platform/commit/9d9d86179457cb8dc48b4491510537878...
Exploit https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-793w-g325-hrw2
Exploit https://jira.xwiki.org/browse/CKEDITOR-508
Exploit https://jira.xwiki.org/browse/XWIKI-20590
46
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 6/34 · Minimal
Exposure 10/34 · Low