XWiki Commons missing escaping of `{` in Velocity escapetool allows remote code execution
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 14.10.19, 15.5.4, 15.9-rc-1
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: poc
- Automatable: yes
- Technical impact: total
Summary
XWiki Platform is a generic wiki platform. Starting in version 3.0.1 and prior to versions 4.10.19, 15.5.4, and 15.10-rc-1, the HTML escaping of escaping tool that is used in XWiki doesn't escape `{`, which, when used in certain places, allows XWiki syntax injection and thereby remote code execution. The vulnerability has been fixed in XWiki 14.10.19, 15.5.5, and 15.9 RC1. Apart from upgrading, there is no generic workaround. However, replacing `$escapetool.html` by `$escapetool.xml` in XWiki documents fixes the vulnerability. In a standard XWiki installation, the maintainers are only aware of the document `Panels.PanelLayoutUpdate` that exposes this vulnerability, patching this document is thus a workaround. Any extension could expose this vulnerability and might thus require patching, too.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: yes · Technical impact: total
- Record last updated
Affected versions
- xwiki xwiki-commons
From 3.0.1 · fixed in 14.10.19; From 15.0-rc-1 · fixed in 15.5.4; From 15.6-rc-1 · fixed in 15.9-rc-1
- org.xwiki.commons:xwiki-commons-velocityMaven
From 3.0.1 · fixed in 14.10.19
- org.xwiki.commons:xwiki-commons-velocityMaven
From 15.0-rc-1 · fixed in 15.5.4
- org.xwiki.commons:xwiki-commons-velocityMaven
From 15.6-rc-1 · fixed in 15.9-rc-1