View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2015-5209 medium priority: Ubuntu including 1 source packages (libstruts1.2-java), 6 status rows across 6 suites (artful, bionic, trusty, upstream, xenial, zesty): DNE 5, not-affected 1.
Apache Struts 2.x before 2.3.24.1 allows remote attackers to manipulate Struts internals, alter user sessions, or affect container settings via vectors involving a top object.