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CVE-2026-105220— Twine 2 Desktop through 2.12.0 Arbitrary Code Execution via Imported Story Files

Quick assessment

Affected
klembot twinejs
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.

Twine 2 桌面版 2.12.0 及更早版本中存在一个跨站脚本（XSS）漏洞，位于 函数中。该漏洞会导致在编辑器窗口中执行从导入的故事文件中的标记（markup）。攻击者可构造一个恶意故事文件，其中的脚本通过调用 的 IPC 桥接机制，写入并打开一个 批处理文件，从而在用户权限下执行任意代码。

CVSS 7.8 · High
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I. Basic Information for CVE-2026-105220

Vulnerability Information
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Vulnerability Title
Twine 2 Desktop through 2.12.0 Arbitrary Code Execution via Imported Story Files
Source: CVE Program / CVE List V5
Vulnerability Description
Twine 2 desktop through 2.12.0 contains a cross-site scripting vulnerability in importStories() that executes markup from imported story files in the editor window. Attackers can craft a story file whose script calls the twineElectron openWithScratchFile IPC bridge to write and open a .bat file, executing code as the user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
klembot twinejs 0 ~ 2.12.0 -

II. Public POCs for CVE-2026-105220

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-105220

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Patches & Fixes for CVE-2026-105220 (3)

Vendor Advisories for CVE-2026-105220 (2)

Other References for CVE-2026-105220 (2)

IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2026-105220

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