[CVE-2021-44140] Apache JSPWiki Arbitrary file deletion on logout#

Severity
Critical

Vendor
The Apache Software Foundation

Versions Affected
Apache JSPWiki up to 2.11.0.M8

Description
Remote attackers may delete arbitrary files in a system hosting a JSPWiki instance by using a carefuly crafted http request on logout, given that those files are reachable to the user running the JSPWiki instance.

Mitigation
Apache JSPWiki users should upgrade to 2.11.0 or later.

Credit
This issue was discovered by haby0 (forhaby0@gmail.com) from Duxiaoman Financial Security Team, who also proposed the fix for this issue.