In upgrading plug-ins to address https://jenkins.io/security/advisory/2017-04-10/

it appears some of the plug-ins affected are no longer available through Update Center (either their new-fixed, or old vulnerable, versions).  Their respective wiki pages still exist, but show "No Information For This Plugin" in the metadata section at the top, specifically:

• scriptler
• active-choice (uno-choice)
• postbuild script
• splunk-devops-extend (and updated splunk-devops is available, but does not encompass the "extended" plug-in previously available).