CVE-2021-21379

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-21379
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21379.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-21379
Aliases
Published
2021-03-12T18:15:12Z
Modified
2024-09-02T22:12:04Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions of XWiki Platform, the {{wikimacrocontent}} executes the content with the rights of the wiki macro author instead of the caller of that wiki macro. This makes possible to inject scripts through it and they will be executed with the rights of the wiki macro (very often a user which has Programming rights). Fortunately, no such macro exists by default in XWiki Standard but one could have been created or installed with an extension. This vulnerability has been patched in versions XWiki 12.6.3, 11.10.11 and 12.8-rc-1. There is no easy workaround other than disabling the affected macros. Inserting content in a safe way or knowing what is the user who called the wiki macro is not easy.

References

Affected packages

Git / github.com/xwiki/xwiki-commons

Affected ranges

Type
GIT
Repo
https://github.com/xwiki/xwiki-commons
Events
Type
GIT
Repo
https://github.com/xwiki/xwiki-platform
Events