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CVE-2023-45819— Cross-site Scripting vulnerability in TinyMCE notificationManager.open API

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 存在安全漏洞，该漏洞源于 TinyMCE 的通知管理器 API 中发现了跨站点脚本 (XSS) 漏洞。

CVSS 6.1 · Medium EPSS 0.63% · P50

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2023-45819

Vulnerability Information
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Vulnerability Title
Cross-site Scripting vulnerability in TinyMCE notificationManager.open API
Source: CVE Program / CVE List V5
Vulnerability Description
TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s Notification Manager API. The vulnerability exploits TinyMCE's unfiltered notification system, which is used in error handling. The conditions for this exploit requires carefully crafted malicious content to have been inserted into the editor and a notification to have been triggered. When a notification was opened, the HTML within the text argument was displayed unfiltered in the notification. The vulnerability allowed arbitrary JavaScript execution when an notification presented in the TinyMCE UI for the current user. This issue could also be exploited by any integration which uses a TinyMCE notification to display unfiltered HTML content. This vulnerability has been patched in TinyMCE 5.10.8 and TinyMCE 6.7.1 by ensuring that the HTML displayed in the notification is sanitized, preventing the exploit. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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
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 存在安全漏洞，该漏洞源于 TinyMCE 的通知管理器 API 中发现了跨站点脚本 (XSS) 漏洞。
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 < 5.10.8 -

II. Public POCs for CVE-2023-45819

# POC Description Source Link Shenlong Link
1 Proof of concept for CVE-2023-45819 https://github.com/philipsinnott/cve-2023-45819 POC Details
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III. Intelligence Information for CVE-2023-45819

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Vendor Advisories for CVE-2023-45819 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-45819

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