{"action":"Upgrade firefox-esr to 52.3.0esr-1 or later.","affected":[{"fixed":"52.3.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["52.3.0esr-1"],"id":"tcs_01M5NCN77FMPM5VT65C1HPDMA1","modified_at":"2026-09-01T20:03:50.592299043Z","published_at":"2018-06-11T21:29:09.937Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2017-7803","https://security-tracker.debian.org/tracker/CVE-2017-7803"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2017-7803#Debian:13/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2017-7803"}],"summary":"When a page's content security policy (CSP) header contains a \"sandbox\" directive, other directives are ignored. This results in the incorrect enforcement of CSP. This vulnerability affects Thunderbir"}