CVE-2021-44140: Apache Jspwiki

Critical severity, CVSS 9.1. EPSS: 6.4% chance of exploitation in the next 30 days.

Remote attackers may delete arbitrary files in a system hosting a JSPWiki instance, versions up to 2.11.0.M8, by using a carefuly crafted http request on logout, given that those files are reachable to the user running the JSPWiki instance. Apache JSPWiki users should upgrade to 2.11.0 or later.

Affected products

• Apache Jspwiki: before 2.11.0 (fixed in 2.11.0)

Published 2021-11-24. Last modified 2026-06-17.