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GHSA-vg35-5wq7-3x7w

Опубликовано: 05 июн. 2026
Источник: github
Github: Прошло ревью
CVSS3: 8.7

Описание

TinyMCE Cross-Site Scripting (XSS) vulnerability using media plugin data-mce-object injection

Impact

Stored XSS vulnerability in the media plugin. Attackers can inject malicious scripts via crafted data-mce-* attributes, which are executed when content is rendered. Impacts users of TinyMCE with the media plugin enabled.

Patches

This vulnerability has been patched in TinyMCE 8.5.1, TinyMCE 7.9.3 and TinyMCE 5.11.1 LTS by ensuring that, when using the media plugin, any content with data-mce-object and data-mce-p-* attributes are properly sanitized.

Workarounds

No official workaround available.

Fix

To avoid this vulnerability:

  • Upgrade to TinyMCE 8.5.1 or higher.
  • Upgrade to TinyMCE 7.9.3 or higher.
  • Upgrade to TinyMCE 5.11.1 LTS or higher for TinyMCE 5.x (only available as part of commercial long-term support contract).

Acknowledgements

Tiny thanks Aymane MAZGUITI and Ange Primiterra for their help identifying this vulnerability.

Пакеты

Наименование

tinymce

npm
Затронутые версииВерсия исправления

<= 5.10.9

Отсутствует

Наименование

tinymce

npm
Затронутые версииВерсия исправления

>= 6.0.0, < 7.9.3

7.9.3

Наименование

tinymce

npm
Затронутые версииВерсия исправления

>= 8.0.0, < 8.5.1

8.5.1

Наименование

TinyMCE

nuget
Затронутые версииВерсия исправления

<= 5.10.9

Отсутствует

Наименование

TinyMCE

nuget
Затронутые версииВерсия исправления

>= 6.0.0, < 7.9.3

7.9.3

Наименование

TinyMCE

nuget
Затронутые версииВерсия исправления

>= 8.0.0, < 8.5.1

8.5.1

Наименование

tinymce/tinymce

composer
Затронутые версииВерсия исправления

<= 5.10.9

Отсутствует

Наименование

tinymce/tinymce

composer
Затронутые версииВерсия исправления

>= 6.0.0, < 7.9.3

7.9.3

Наименование

tinymce/tinymce

composer
Затронутые версииВерсия исправления

>= 8.0.0, < 8.5.1

8.5.1

EPSS

Процентиль: 18%
0.00264
Низкий

8.7 High

CVSS3

Дефекты

CWE-79

Связанные уязвимости

CVSS3: 8.7
ubuntu
2 месяца назад

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 in the media plugin. Attackers can inject malicious scripts via crafted data-mce-* attributes, which are executed when content is rendered. Impacts users of TinyMCE with the media plugin enabled. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.

CVSS3: 8.7
nvd
2 месяца назад

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 in the media plugin. Attackers can inject malicious scripts via crafted data-mce-* attributes, which are executed when content is rendered. Impacts users of TinyMCE with the media plugin enabled. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.

CVSS3: 8.7
debian
2 месяца назад

TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, an ...

EPSS

Процентиль: 18%
0.00264
Низкий

8.7 High

CVSS3

Дефекты

CWE-79