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CVE-2026-42615

CVSS 7.2 · High EPSS 0.01% · P2
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I. Basic Information for CVE-2026-42615

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
GCHQ CyberChef before 11.0.0 allows XSS via Show Base64 offsets, as demonstrated by the /#recipe=Show_Base64_offsets('%3Cscript substring.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
CyberChef 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CyberChef是GCHQ开源的一款具有加密、编码、压缩和数据分析等功能的网络应用程序 。 CyberChef 11.0.0之前版本存在跨站脚本漏洞，该漏洞源于Show Base64 offsets功能，可通过/#recipe=Show_Base64_offsets %3Cscript substring利用。
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

VendorProductAffected VersionsCPESubscribe
GCHQCyberChef 0 ~ 11.0.0 -

II. Public POCs for CVE-2026-42615

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III. Intelligence Information for CVE-2026-42615

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Patch · 2Other · 1

IV. Related Vulnerabilities

Same vendor: GCHQ
Same weakness: CWE-79

V. Comments for CVE-2026-42615

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