/usr/share/cpl-plugins/ is in cpl-plugin-fors 5.1.4+dfsg-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/cpl-plugins/fors-5.1.4/
/usr/share/cpl-plugins/fors-5.1.4/config/
/usr/share/cpl-plugins/fors-5.1.4/config/fors.conv
/usr/share/cpl-plugins/fors-5.1.4/config/fors.nnw
/usr/share/cpl-plugins/fors-5.1.4/config/fors.param
/usr/share/cpl-plugins/fors-5.1.4/config/fors.sex
/usr/share/cpl-plugins/fors-5.1.4/dic/
/usr/share/cpl-plugins/fors-5.1.4/dic/ESO-DFS-DIC.FORS
/usr/share/cpl-plugins/fors-5.1.4/dic/ESO-DFS-DIC.FORS1_QC
/usr/share/cpl-plugins/fors-5.1.4/dic/ESO-DFS-DIC.FORS2_QC
/usr/share/cpl-plugins/fors-5.1.4/dic/ESO-VLT-DIC.FORS
/usr/share/cpl-plugins/fors-5.1.4/gasgano/
/usr/share/cpl-plugins/fors-5.1.4/gasgano/config/
/usr/share/cpl-plugins/fors-5.1.4/gasgano/config/FORS1.prefs
/usr/share/cpl-plugins/fors-5.1.4/gasgano/config/FORS2.prefs
/usr/share/cpl-plugins/fors-5.1.4/gasgano/config/fors1.oca
/usr/share/cpl-plugins/fors-5.1.4/gasgano/config/fors2.oca
/usr/share/cpl-plugins/fors-5.1.4/reflex/
/usr/share/cpl-plugins/fors-5.1.4/reflex/fors_calib_interact.py
/usr/share/cpl-plugins/fors-5.1.4/reflex/fors_imaging.xml
/usr/share/cpl-plugins/fors-5.1.4/reflex/fors_imaging_wkf.oca
/usr/share/cpl-plugins/fors-5.1.4/reflex/fors_plot_common.py
/usr/share/cpl-plugins/fors-5.1.4/reflex/fors_pmos.xml
/usr/share/cpl-plugins/fors-5.1.4/reflex/fors_pmos_wkf.oca
/usr/share/cpl-plugins/fors-5.1.4/reflex/fors_response_interact.py
/usr/share/cpl-plugins/fors-5.1.4/reflex/fors_science_interact.py
/usr/share/cpl-plugins/fors-5.1.4/reflex/fors_spec.xml
/usr/share/cpl-plugins/fors-5.1.4/reflex/fors_spec_wkf.oca