{"id":"CVE-2026-82805","state":"PUBLISHED","title":"Typora Mermaid Rendering cross site scripting","description":"A vulnerability was found in Typora up to 1.13.8/1.14.6. This vulnerability affects unknown code of the component Mermaid Rendering Engine. The manipulation of the argument classDef/style results in cross site scripting. The attack may be launched remotely. The exploit has been made public and could be used. Upgrading to version 1.14.8 is able to resolve this issue. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.","publishedAt":"2026-08-31T15:45:07.352Z","updatedAt":"2026-08-31T16:09:12.808Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["n/a Typora"],"affected":[{"vendor":"n/a","product":"Typora","versions":[{"version":"1.13.0","status":"affected"},{"version":"1.13.1","status":"affected"},{"version":"1.13.2","status":"affected"},{"version":"1.13.3","status":"affected"},{"version":"1.13.4","status":"affected"},{"version":"1.13.5","status":"affected"},{"version":"1.13.6","status":"affected"},{"version":"1.13.7","status":"affected"},{"version":"1.13.8","status":"affected"},{"version":"1.14.0","status":"affected"},{"version":"1.14.1","status":"affected"},{"version":"1.14.2","status":"affected"},{"version":"1.14.3","status":"affected"},{"version":"1.14.4","status":"affected"},{"version":"1.14.5","status":"affected"},{"version":"1.14.6","status":"affected"},{"version":"1.14.8","status":"unaffected"}],"cpes":["cpe:2.3:a:typora:typora:*:*:*:*:*:*:*:*"],"modules":["Mermaid Rendering Engine"]}],"references":["https://vuldb.com/vuln/397225","https://vuldb.com/vuln/397225/cti","https://vuldb.com/cve/CVE-2026-82805","https://vuldb.com/submit/863528","https://github.com/zzk6th/cve/issues/5","https://typora.io/releases/all","https://typora.io/#download"],"weaknesses":["CWE-79","CWE-94"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/82xxx/CVE-2026-82805.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-82805","state":"PUBLISHED","datePublished":"2026-08-31T15:45:07.352Z","dateUpdated":"2026-08-31T16:09:12.808Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-08-31T04:29:30.694Z"},"containers":{"cna":{"title":"Typora Mermaid Rendering cross site scripting","descriptions":[{"lang":"en","value":"A vulnerability was found in Typora up to 1.13.8/1.14.6. This vulnerability affects unknown code of the component Mermaid Rendering Engine. The manipulation of the argument classDef/style results in cross site scripting. The attack may be launched remotely. The exploit has been made public and could be used. Upgrading to version 1.14.8 is able to resolve this issue. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product."}],"affected":[{"vendor":"n/a","product":"Typora","versions":[{"version":"1.13.0","status":"affected"},{"version":"1.13.1","status":"affected"},{"version":"1.13.2","status":"affected"},{"version":"1.13.3","status":"affected"},{"version":"1.13.4","status":"affected"},{"version":"1.13.5","status":"affected"},{"version":"1.13.6","status":"affected"},{"version":"1.13.7","status":"affected"},{"version":"1.13.8","status":"affected"},{"version":"1.14.0","status":"affected"},{"version":"1.14.1","status":"affected"},{"version":"1.14.2","status":"affected"},{"version":"1.14.3","status":"affected"},{"version":"1.14.4","status":"affected"},{"version":"1.14.5","status":"affected"},{"version":"1.14.6","status":"affected"},{"version":"1.14.8","status":"unaffected"}],"cpes":["cpe:2.3:a:typora:typora:*:*:*:*:*:*:*:*"],"modules":["Mermaid Rendering Engine"]}],"references":[{"url":"https://vuldb.com/vuln/397225","name":"VDB-397225 | Typora Mermaid Rendering cross site scripting","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/397225/cti","name":"VDB-397225 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-82805","name":"CVE-2026-82805 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/863528","name":"Submit #863528 | Typora <=1.13.7 Code Injection","tags":["third-party-advisory"]},{"url":"https://github.com/zzk6th/cve/issues/5","tags":["exploit","issue-tracking"]},{"url":"https://typora.io/releases/all","tags":["patch"]},{"url":"https://typora.io/#download","tags":["patch"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":4.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":4.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:OF/RC:C"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","type":"CWE","lang":"en","description":"Cross Site Scripting"}]},{"descriptions":[{"cweId":"CWE-94","type":"CWE","lang":"en","description":"Code Injection"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-08-31T15:45:07.352Z"},"timeline":[{"time":"2026-08-31T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-31T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-31T06:35:33.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"z0ng (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-31T16:08:42.839231Z","id":"CVE-2026-82805","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-31T16:09:12.808Z"}}]}}}