/usr/share/perl5/POE/Component/IRC/Plugin/ is in libpoe-component-irc-perl 6.83+dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/POE/Component/IRC/Plugin/AutoJoin.pm
/usr/share/perl5/POE/Component/IRC/Plugin/BotAddressed.pm
/usr/share/perl5/POE/Component/IRC/Plugin/BotCommand.pm
/usr/share/perl5/POE/Component/IRC/Plugin/BotTraffic.pm
/usr/share/perl5/POE/Component/IRC/Plugin/CTCP.pm
/usr/share/perl5/POE/Component/IRC/Plugin/Connector.pm
/usr/share/perl5/POE/Component/IRC/Plugin/Console.pm
/usr/share/perl5/POE/Component/IRC/Plugin/CycleEmpty.pm
/usr/share/perl5/POE/Component/IRC/Plugin/DCC.pm
/usr/share/perl5/POE/Component/IRC/Plugin/FollowTail.pm
/usr/share/perl5/POE/Component/IRC/Plugin/ISupport.pm
/usr/share/perl5/POE/Component/IRC/Plugin/Logger.pm
/usr/share/perl5/POE/Component/IRC/Plugin/NickReclaim.pm
/usr/share/perl5/POE/Component/IRC/Plugin/NickServID.pm
/usr/share/perl5/POE/Component/IRC/Plugin/PlugMan.pm
/usr/share/perl5/POE/Component/IRC/Plugin/Proxy.pm
/usr/share/perl5/POE/Component/IRC/Plugin/Whois.pm