Cross-site scripting (XSS) vulnerability in opac-addbybiblionumber.pl in Koha 3.14.x before 3.14.16, 3.16.x before 3.16.12, and 3.20.x before 3.20.1 allows remote attackers to inject arbitrary web script or HTML via a crafted list name.
Multiple directory traversal vulnerabilities in Koha 3.14.x before 3.14.16, 3.16.x before 3.16.12, 3.18.x before 3.18.08, and 3.20.x before 3.20.1 allow remote attackers to read arbitrary files via a ..%2f (dot dot encoded slash) in the templatepath parameter to (1) svc/virtualshelves/search or (2) svc/members/search.
Multiple cross-site scripting (XSS) vulnerabilities in Koha 3.14.x before 3.14.16, 3.16.x before 3.16.12, 3.18.x before 3.18.08, and 3.20.x before 3.20.1 allow remote attackers to inject arbitrary web script or HTML via the (1) tag parameter to opac-search.pl; the (2) value parameter to authorities/authorities-home.pl; the (3) delay parameter to acqui/lateorders.pl; the (4) authtypecode or (5) tagfield to admin/authsubfieldsstructure.pl; the (6) tagfield parameter to admin/marcsubfieldsstructure.pl; the (7) limit parameter to catalogue/search.pl; the (8) booksellerfilter, (9) callnumberfilter, (10) EANfilter, (11) ISSNfilter, (12) publisherfilter, or (13) titlefilter parameter to serials/serials-search.pl; or the (14) author, (15) collectiontitle, (16) copyrightdate, (17) isbn, (18) manageddatefrom, (19) manageddateto, (20) publishercode, (21) suggesteddatefrom, or (22) suggesteddateto parameter to suggestion/suggestion.pl; or the (23) direction, (24) display or (25) addshelf parameter to opac-shelves.pl.
Multiple cross-site request forgery (CSRF) vulnerabilities in Koha 3.14.x before 3.14.16, 3.16.x before 3.16.12, 3.18.x before 3.18.08, and 3.20.x before 3.20.1 allow remote attackers to (1) hijack the authentication of administrators for requests that create a user via a request to members/memberentry.pl or (2) give a user superlibrarian permission via a request to members/member-flags.pl or (3) hijack the authentication of arbitrary users for requests that conduct cross-site scripting (XSS) attacks via the addshelf parameter to opac-shelves.pl.
Multiple SQL injection vulnerabilities in Koha 3.14.x before 3.14.16, 3.16.x before 3.16.12, 3.18.x before 3.18.08, and 3.20.x before 3.20.1 allow (1) remote attackers to execute arbitrary SQL commands via the number parameter to opac-tagssubject.pl in the OPAC interface or (2) remote authenticated users to execute arbitrary SQL commands via the Filter or (3) Criteria parameter to reports/borrowersout.pl in the Staff interface.