CVE-2020-4061— Cross-site Scripting in OctoberPotential self-XSS when pasting content from malicious websites
Quick assessment
Affected
October CMS October
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.
October CMS是一套基于PHP和Laravel Web应用程序框架的开源内容管理系统（CMS）。 October 1.0.319及之后版本（已在1.0.467版本中修复）中存在跨站脚本漏洞。该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2020-4061
Vulnerability Information
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Vulnerability Title
Cross-site Scripting in OctoberPotential self-XSS when pasting content from malicious websites
Source: CVE Program / CVE List V5
Vulnerability Description
In October from version 1.0.319 and before version 1.0.467, pasting content copied from malicious websites into the Froala richeditor could result in a successful self-XSS attack. This has been fixed in 1.0.467.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/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
October CMS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
October CMS是一套基于PHP和Laravel Web应用程序框架的开源内容管理系统（CMS）。 October 1.0.319及之后版本（已在1.0.467版本中修复）中存在跨站脚本漏洞。该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。
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 |
|---|---|---|---|---|
| October CMS | October | >= 1.0.319, < 1.0.467 | - |
|
II. Public POCs for CVE-2020-4061
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2020-4061 (1)
Vendor Advisories for CVE-2020-4061 (1)
-
https://github.com/octobercms/october/security/advisories/GHSA-3pc2-fm7p-q2vg x_refsource_CONFIRM
Other References for CVE-2020-4061 (1)
-
https://research.securitum.com/the-curious-case-of-copy-paste/ x_refsource_MISC
IV. Related Vulnerabilities
Same product: October
-
CVE-2026-29179
October: Editor Sub-Permission Bypass for Asset and Blueprin -
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October: Reflected XSS via DataTable Form Widget -
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October: Safe Mode Bypass via Twig Database Write Operations -
CVE-2026-26067
October: Safe Mode Bypass via CSS Preprocessor Compilers -
CVE-2026-25133
October CMS has Stored XSS via SVG Filter Bypass
Same vendor: October CMS
Same weakness: CWE-79
-
CVE-2026-15973
LimeSurvey 7.0.5 - Stored XSS in Survey Menu Entries -
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Winter: Stored XSS through Editor Settings custom styles -
CVE-2026-32257
Winter: Stored XSS through Brand Settings custom styles -
CVE-2026-80426
FiftyOne before 1.21.0 Stored Cross-Site Scripting via Unesc -
CVE-2026-54606
SunEditor: DOM XSS in SunEditor Embed Plugin via External Sc
V. Comments for CVE-2020-4061
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