{"version":"https://jsonfeed.org/version/1.1","title":"Patchfirst: Checkbox vulnerabilities","home_page_url":"https://patchfirst.co/vendor/checkbox/","feed_url":"https://patchfirst.co/feed/vendor/checkbox.json","description":"New and newly exploited Checkbox CVEs, with CISA KEV, EPSS and ATT&CK context. Newest 50 by publication or KEV listing.","language":"en-GB","items":[{"id":"CVE-2021-27852#kev","url":"https://patchfirst.co/cve/CVE-2021-27852/","title":"[KEV] CVE-2021-27852: Checkbox Survey Deserialization of Untrusted Data Vulnerability","content_text":"Checkbox · Checkbox Survey. In CISA KEV since 2022-04-11. ENISA EUVD lists it as exploited. EPSS 30.3% (higher than 98.2% of CVEs). CVSS 9.8 CRITICAL. ATT&CK: T1190 Exploit Public-Facing Application; T1059 Command and Scripting Interpreter. Priority 64.5 of 100.","summary":"Checkbox Survey Deserialization of Untrusted Data Vulnerability","date_published":"2022-04-11T00:00:00.000Z","date_modified":"2026-06-17T03:45:31.000Z","tags":["kev","T1190","T1059"],"_patchfirst":{"reason":"kev","priority":64.5,"kev":{"dateAdded":"2022-04-11","ransomware":false},"epss":{"score":0.30258,"percentile":0.9822},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1"},"vendor":"Checkbox","product":"Checkbox Survey","techniqueIds":["T1190","T1059"],"reportCount":0,"hasPublicExploit":false,"euvdExploited":true}}]}