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CVE-2026-82805— Typora Mermaid Rendering cross site scripting

Quick assessment

Affected
n/a Typora
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Typora是Typora公司的一款所见即所得的Markdown编辑器。 Typora 1.13.8及之前版本和1.14.6及之前版本存在安全漏洞，该漏洞源于Mermaid Rendering Engine组件中参数classDef/style操作不当，可能导致跨站脚本攻击。

CVSS 4.3 · Medium EPSS 0.49% · P40

Affected Version Matrix 17

VendorProduct Version RangeStatus
n/a Typora 1.13.0 affected
1.13.1 affected
1.13.2 affected
1.13.3 affected
1.13.4 affected
1.13.5 affected
1.13.6 affected
1.13.7 affected
… +9 more rows
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I. Basic Information for CVE-2026-82805

Vulnerability Information
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Vulnerability Title
Typora Mermaid Rendering cross site scripting
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Typora 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Typora是Typora公司的一款所见即所得的Markdown编辑器。 Typora 1.13.8及之前版本和1.14.6及之前版本存在安全漏洞，该漏洞源于Mermaid Rendering Engine组件中参数classDef/style操作不当，可能导致跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- Typora 1.13.0 cpe:2.3:a:typora:typora:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-82805

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III. Intelligence Information for CVE-2026-82805

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Vendor Advisories for CVE-2026-82805 (2)

Proof of Concept for CVE-2026-82805 (1)

Vendor Pages for CVE-2026-82805 (2)

Other References for CVE-2026-82805 (1)

Same Patch Batch · n/a · 2026-08-31 · 95 CVEs total

CVE-2026-82954 9.9 CRITICAL Dokploy Settings application.ts writeTraefikConfigInPath path traversal
CVE-2026-82608 7.4 HIGH Kamailio AVP cxdx_avp.c get_4bytes out-of-bounds
CVE-2026-82598 7.3 HIGH SeaCMS Template search.php parseIf code injection
CVE-2026-82630 7.3 HIGH PowerJob Transport Endpoint TestController.java MuConnectionManager.getOrCreateConnection
CVE-2026-82600 7.3 HIGH SeaCMS zyapi.php sql injection
CVE-2026-82603 5.4 MEDIUM SeaCMS Comment Cache member.php del_pl path traversal
CVE-2026-82599 5.4 MEDIUM SeaCMS Avatar Upload member.php unlink path traversal
CVE-2026-82623 5.3 MEDIUM open62541 History Backend ua_history_data_backend_memory.c UA_DataValue_backend_copyRange
CVE-2026-82602 5.3 MEDIUM SeaCMS ass.php authorization
CVE-2026-82821 4.3 MEDIUM FLVMeta AMF Object Parsing amf.c amf_object_get null pointer dereference
CVE-2026-82820 4.3 MEDIUM FLVMeta AMF String Processing amf.c amf_string_new heap-based overflow
CVE-2026-82601 4.3 MEDIUM SeaCMS err.php cross site scripting
CVE-2026-82596 3.3 LOW LatencyUtils PauseDetector LatencyStats.java LatencyStats.recordDetectedPause memory corru
CVE-2026-51725 TOTOLINK T6 权限许可和访问控制问题漏洞
CVE-2026-51728 TOTOLINK T6 安全漏洞
CVE-2026-51721 TOTOLINK T6 安全漏洞
CVE-2026-51722 TOTOLINK T6 安全漏洞
CVE-2026-51720 TOTOLINK T6 权限许可和访问控制问题漏洞
CVE-2026-51718 TOTOLINK T6 安全漏洞
CVE-2026-51719 TOTOLINK T6 安全漏洞

Showing top 20 of 95 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Typora
Same vendor: n/a
Same weakness: CWE-79

V. Comments for CVE-2026-82805

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