CVE-2024-31996

Summary

CVE-2024-31996 is a vulnerability affecting XWiki Platform, a generic wiki solution. Prior to version 15.10-rc-1, 15.5.4, and 4.10.19, the HTML escaping tool in XWiki did not properly escape the character `{`, allowing attackers to inject XWiki syntax and execute remote code. The vulnerability has been remedied in XWiki 14.10.19, 15.5.5, and 15.9 RC1. While upgrading is the recommended solution, a workaround involves replacing `$escapetool.html` with `$escapetool.xml` in XWiki documents or patching the vulnerable document, "Panels.PanelLayoutUpdate," in a standard installation. Be aware, however, that any extension using the unescaped `{` character could also be susceptible to this vulnerability and may require patching as well.

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