{"affected":[{"defaultStatus":"unaffected","product":"espocrm","source":"CNA: VulnCheck","vendor":"espocrm","versions":[{"lessThan":"10.0.8","status":"affected","version":"10.0.0","versionType":"semver"},{"status":"unaffected","version":"10.0.8","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"espocrm","source":"CNA: VulnCheck","vendor":"espocrm","versions":[{"lessThan":"9.3.11","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"9.3.11","versionType":"semver"}]}],"cveId":"CVE-2026-126306","cwes":["CWE-79"],"description":"EspoCRM before 9.3.11 and 10.x before 10.0.8 contains a stored cross-site scripting vulnerability that allows low-privileged users to upload crafted SVG images that submit authenticated POST requests to arbitrary backend endpoints. Attackers can trick an administrator into opening the SVG in a separate browser tab and clicking it, performing administrator actions such as elevating the attacker's account to administrator.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.6,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":8,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},{"score":8.6,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":8,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794565056100,"publishedAt":1794562581753,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/espocrm/espocrm/security/advisories/GHSA-4qv5-q4g7-hp5r"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/espocrm-before-10.0.8-stored-xss-via-malicious-svg-attachment"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/espocrm/espocrm/security/advisories/GHSA-4qv5-q4g7-hp5r"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/espocrm-before-10.0.8-stored-xss-via-malicious-svg-attachment"}],"remediation":[],"revision":"0931c33da5085a88b55d7a4cf4a4626816daadffa09037e9558ffeaf1c5c072f","sources":[{"modifiedAt":1794562581753,"name":"CNA: VulnCheck","retrievedAt":1794564591060,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126306"},{"modifiedAt":1794565056100,"name":"NVD","retrievedAt":1794572187063,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126306"}],"ssvc":null,"status":"published","title":"EspoCRM before 10.0.8 Stored XSS via Malicious SVG Attachment","updatedAt":1794572187063}