{"action":"Upgrade github.com/umputun/remark42 to 1.16.0 or later.","affected":[{"fixed":"1.16.0","introduced":"1.6.0"}],"component":"github.com/umputun/remark42","cve_ids":["CVE-2026-48788"],"ecosystem":"Go","epss":0.00406,"exploited":false,"fixed_versions":["1.16.0"],"ghsa_id":"GHSA-4c8j-mgm4-qqvp","id":"tcs_01M5KEWCWH1BVTP8W26NWCYPV7","modified_at":"2026-07-07T16:11:13.898247373Z","published_at":"2026-06-26T19:26:43Z","references":["https://osv.dev/vulnerability/GHSA-4c8j-mgm4-qqvp","https://github.com/umputun/remark42/security/advisories/GHSA-4c8j-mgm4-qqvp","https://nvd.nist.gov/vuln/detail/CVE-2026-48788","https://github.com/umputun/remark42/commit/78d6de6bce1e961f023969da3ec8a00dd80c9ae8","https://github.com/umputun/remark42","https://github.com/umputun/remark42/releases/tag/v1.16.0"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"GHSA-4c8j-mgm4-qqvp","url":"https://osv.dev/vulnerability/GHSA-4c8j-mgm4-qqvp"}],"summary":"Remark42: Cross-Site Scripting (XSS) on /api/v1/img via content-type spoofing"}