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CVE-2026-47760— TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs

Quick assessment

Affected
tinymce tinymce
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tiny Technologies TinyMCE是美国Tiny Technologies公司的一款富文本编辑器。 TinyMCE 6.8.0版本至7.1.0之前版本存在跨站脚本漏洞，该漏洞源于清理器中SVG命名空间范围处理不当，可能导致使用嵌套元素的特制有效载荷绕过属性清理并执行任意JavaScript。

CVSS 8.7 · High EPSS 0.19% · P9

Affected Version Matrix 1

VendorProduct Version RangeStatus
tinymce tinymce >= 6.0.0, < 7.1.0 affected
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I. Basic Information for CVE-2026-47760

Vulnerability Information
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Vulnerability Title
TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs
Source: CVE Program / CVE List V5
Vulnerability Description
TinyMCE is an open source rich text editor. From 6.8.0 to before 7.1.0, TinyMCE contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested elements can bypass attribute sanitization and execute arbitrary JavaScript. This vulnerability is fixed in 7.1.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/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
Tiny Technologies TinyMCE 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tiny Technologies TinyMCE是美国Tiny Technologies公司的一款富文本编辑器。 TinyMCE 6.8.0版本至7.1.0之前版本存在跨站脚本漏洞，该漏洞源于清理器中SVG命名空间范围处理不当，可能导致使用嵌套元素的特制有效载荷绕过属性清理并执行任意JavaScript。
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
tinymce tinymce >= 6.0.0, < 7.1.0 -

II. Public POCs for CVE-2026-47760

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 7503 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
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III. Intelligence Information for CVE-2026-47760

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Vendor Advisories for CVE-2026-47760 (1)

Same Patch Batch · tinymce · 2026-05-28 · 4 CVEs total

CVE-2026-47761 8.7 HIGH TinyMCE Cross-Site Scripting (XSS) vulnerability using media plugin `data-mce-object` inje
CVE-2026-47762 8.7 HIGH TinyMCE Cross-Site Scripting (XSS) vulnerability through `mce:protected` comments
CVE-2026-47759 8.7 HIGH TinyMCE Cross-Site Scripting (XSS) vulnerability using through data-mce- prefixed src, hre

IV. Related Vulnerabilities

Same product: tinymce
Same vendor: tinymce
Same weakness: CWE-79

V. Comments for CVE-2026-47760

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