Cross-site scripting (XSS) vulnerability in the htmlscrubber component in ikiwiki 2.x before 2.53.5 and 3.x before 3.20100312 allows remote attackers to inject arbitrary web script or HTML via a crafted data:image/svg+xml URI.

ikiwiki before 3.20110328 does not ascertain whether the htmlscrubber plugin is enabled during processing of the "meta stylesheet" directive, which allows remote authenticated users to conduct cross-site scripting (XSS) attacks via crafted Cascading Style Sheets (CSS) token sequences in (1) the default stylesheet or (2) an alternate stylesheet.

Multiple cross-site scripting (XSS) vulnerabilities in the meta plugin (Plugin/meta.pm) in ikiwiki before 3.20120516 allow remote attackers to inject arbitrary web script or HTML via the (1) author or (2) authorurl meta tags.

Cross-site scripting (XSS) vulnerability in templates/openid-selector.tmpl in ikiwiki before 3.20150329 allows remote attackers to inject arbitrary web script or HTML via the openid_identifier parameter in a verify action to ikiwiki.cgi.

ikiwiki 3.20161219 does not properly check if a revision changes the access permissions for a page on sites with the git and recentchanges plugins and the CGI interface enabled, which allows remote attackers to revert certain changes by leveraging permissions to change the page before the revision was made.

Cross-site scripting (XSS) vulnerability in the cgierror function in CGI.pm in ikiwiki before 3.20160506 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors involving an error message.

The fix for ikiwiki for CVE-2016-10026 was incomplete resulting in editing restriction bypass for git revert when using git versions older than 2.8.0. This has been fixed in 3.20161229.

ikiwiki before 3.20161229 incorrectly called the CGI::FormBuilder->field method (similar to the CGI->param API that led to Bugzilla's CVE-2014-1572), which can be abused to lead to commit metadata forgery.

A flaw, similar to to CVE-2016-9646, exists in ikiwiki before 3.20170111, in the passwordauth plugin's use of CGI::FormBuilder, allowing an attacker to bypass authentication via repeated parameters.

ikiwiki before 3.20170111.1 and 3.2018x and 3.2019x before 3.20190228 allows SSRF via the aggregate plugin. The impact also includes reading local files via file: URIs.