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CVE-2026-47762— TinyMCE Cross-Site Scripting (XSS) vulnerability through `mce:protected` comments

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。 Tiny Technologies TinyMCE 5.11.1之前版本、7.9.3之前版本和8.5.1之前版本存在跨站脚本漏洞，该漏洞源于伪造的mce:protected注释可能导致存储型XSS攻击，攻击者可以绕过清理并注入脚本，在内容恢复时执行。

CVSS 8.7 · High EPSS 0.28% · P20

Affected Version Matrix 4

VendorProduct Version RangeStatus
tinymce tinymce < 5.11.1 affected
>= 6.0.0, <= 6.8.6 affected
>= 7.0.0, < 7.9.3 affected
>= 8.0.0, < 8.5.1 affected
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I. Basic Information for CVE-2026-47762

Vulnerability Information
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Vulnerability Title
TinyMCE Cross-Site Scripting (XSS) vulnerability through `mce:protected` comments
Source: CVE Program / CVE List V5
Vulnerability Description
TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via forged mce:protected comments. Allows attackers to bypass sanitization and inject scripts that execute when content is restored. Impacts users who utilize the protect option. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.
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。 Tiny Technologies TinyMCE 5.11.1之前版本、7.9.3之前版本和8.5.1之前版本存在跨站脚本漏洞，该漏洞源于伪造的mce:protected注释可能导致存储型XSS攻击，攻击者可以绕过清理并注入脚本，在内容恢复时执行。
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 < 5.11.1 -

II. Public POCs for CVE-2026-47762

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 12341 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-47762

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Vendor Advisories for CVE-2026-47762 (1)

Vendor Pages for CVE-2026-47762 (2)

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

CVE-2026-47760 8.7 HIGH TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested
CVE-2026-47761 8.7 HIGH TinyMCE Cross-Site Scripting (XSS) vulnerability using media plugin `data-mce-object` inje
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-2026-47762

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