CVE-2023-27480: Improper Restriction of XML External Entity Reference

March 8, 2023

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions any user with edit rights on a document can trigger an XAR import on a forged XAR file, leading to the ability to display the content of any file on the XWiki server host. This vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10-rc-1. Users are advised to upgrade. Users unable to upgrade may apply the patch e3527b98fd manually.

References

github.com/advisories/GHSA-gx4f-976g-7g6v
github.com/xwiki/xwiki-platform/commit/e3527b98fdd8dc8179c24dc55e662b2c55199434
github.com/xwiki/xwiki-platform/security/advisories/GHSA-gx4f-976g-7g6v
jira.xwiki.org/browse/XWIKI-20320
nvd.nist.gov/vuln/detail/CVE-2023-27480

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