[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-CVE-2026-8445":6},{"stargazers_count":4,"fetched_at":5},7,"2026-08-23T18:46:18.887Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":44,"aliases":45,"duplicate_of":9,"upstream":46,"downstream":47,"duplicates":48,"related":49,"reserved_at":9,"published_at":50,"modified_at":50,"state":51,"summary":52,"references_raw":59,"kevs":71,"epss":9,"epss_history":72,"metrics":73,"affected":85},"CVE-2026-8445","justhtml versions \u003C= 1.11.0 (fixed in 1.12.0) do not sufficiently escape HTML-significant characters (angle brackets) in text nodes when converting a parsed document to Markdown via to_markdown(). While a small set of Markdown metacharacters are escaped, characters such as \u003C and > are preserved, so untrusted input that is safe in to_html() — including entity-decoded text (e.g. &lt;script&gt;) or text from RCDATA/RAWTEXT-parsed elements like \u003Ctitle>, \u003Ctextarea>, \u003Cnoscript>, and \u003Cplaintext> — can be emitted as raw HTML in the Markdown output, enabling a sanitizer bypass and potential cross-site scripting when that output is rendered.",null,[11],{"_key":12,"id":12,"name":13,"description":14,"type":15,"status":16,"abstraction":17,"likelihood_of_exploit":18,"capec":19},"CWE-79","Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.","weakness","Stable","Base","High",[20,24,28,32,36,40],{"id":21,"name":22,"techniques":23},"CAPEC-209","XSS Using MIME Type Mismatch",[],{"id":25,"name":26,"techniques":27},"CAPEC-588","DOM-Based XSS",[],{"id":29,"name":30,"techniques":31},"CAPEC-591","Reflected XSS",[],{"id":33,"name":34,"techniques":35},"CAPEC-592","Stored XSS",[],{"id":37,"name":38,"techniques":39},"CAPEC-63","Cross-Site Scripting (XSS)",[],{"id":41,"name":42,"techniques":43},"CAPEC-85","AJAX Footprinting",[],[],[],[],[],[],[],"2026-08-23T13:34:13.886Z","Received",{"cisa_kev":53,"cisa_ransomware":53,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":54,"severity_score":55,"severity_version":56,"severity_source":57,"severity_vector":58,"severity_status":51},false,"critical",9.8,"v3.1","cve.org","CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",[60,66],{"url":61,"sources":62,"tags":64},"https://github.com/EmilStenstrom/justhtml/security/advisories/GHSA-3rcm-vjrc-p45j",[57,63],"nvd",[65],"Vendor Advisory",{"url":67,"sources":68,"tags":69},"https://www.vulncheck.com/advisories/justhtml-before-sanitizer-bypass-via-markdown",[57,63],[70],"Third Party Advisory",[],[],[74,81],{"source":57,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":75,"cvss_v4_0":78},{"baseScore":55,"baseSeverity":76,"vectorString":58,"impactScore":55,"exploitabilityScore":77},"CRITICAL",10,{"baseScore":79,"baseSeverity":76,"vectorString":80,"impactScore":9,"exploitabilityScore":9},9.3,"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",{"source":63,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":82,"cvss_v4_0":83},{"baseScore":55,"baseSeverity":76,"vectorString":58,"impactScore":55,"exploitabilityScore":77},{"baseScore":79,"baseSeverity":76,"vectorString":84,"impactScore":9,"exploitabilityScore":9},"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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",[86],{"ecosystem":9,"name":87,"vendor":88,"product":87,"cpe_part":89,"purl_type":9,"purl_namespace":9,"purl_name":9,"source":9,"versions":90},"justhtml","emilstenstrom","a",[91],{"version":92,"is_range":93,"range_type":57,"version_start":9,"version_start_type":9,"version_end":94,"version_end_type":95,"fixed_in":9},"\u003C 1.12.0",true,"1.12.0","excluding"]