CVE-2026-47760
HighSummary
TinyMCE is an open source rich text editor that from versions 6.8.0 to before 7.1.0 contains an XSS vulnerability due to improper SVG namespace scope handling in the sanitizer. A crafted payload using nested elements can bypass attribute sanitization and execute arbitrary JavaScript.
Risk Assessment
This vulnerability may allow for the execution of malicious JavaScript code in the user's context, posing risks such as data theft or session hijacking. Organizations should be aware of the potential threats associated with this vulnerability.
Recommendation
It is recommended to update TinyMCE to version 7.1.0 or later to mitigate this vulnerability. Additionally, conducting a security audit of applications using TinyMCE is advisable.
Other vulnerabilities in TinyMCE
See all- CVE-2026-47762High
TinyMCE is an open source rich text editor that prior to versions 5.11.1, 7.9.3, and 8.5.1 had a stored XSS vulnerability via forged mce:protected comments. This allows attackers to bypass sanitization and inject scripts that execute when content is restored.
- CVE-2026-47759High
TinyMCE is an open source rich text editor that prior to versions 5.11.1, 7.9.3, and 8.5.1 had a stored XSS vulnerability via unsanitized data-mce-* attributes. This allows attackers to inject malicious values that can override safe attributes during serialization.
- CVE-2024-21911Medium
Stored XSS vulnerability in TinyMCE before version 5.6.0. An unauthenticated remote attacker can inject crafted HTML into the editor, leading to arbitrary JavaScript execution in another user's browser.
- CVE-2024-21910Medium
An XSS vulnerability in TinyMCE before version 5.10.0 allows a remote, unauthenticated attacker to inject malicious JavaScript via crafted image or link URLs. The code executes in the browser of a user editing content.
- CVE-2024-21908Medium
Stored XSS vulnerability in TinyMCE before version 5.9.0. An unauthenticated remote attacker can inject crafted HTML into the editor, leading to arbitrary JavaScript execution in another user's browser.
Original NVD description (English source)
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.