CVE-2022-41938

描述

Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after `v1.5` and was not noticed. This allowed an attacker to inject malicious HTML markup using a discussion title input, either by creating a new discussion or renaming one. The XSS attack occurs after a visitor opens the relevant discussion page. ### Impact All communities running Flarum from `v1.5.0` to `v1.6.1` are impacted. ### Patches The vulnerability has been fixed and published as flarum/core `v1.6.2`. All communities running Flarum from `v1.5.0` to `v1.6.1` have to upgrade as soon as possible to v1.6.2 using: ``` composer update --prefer-dist --no-dev -a -W ``` You can then confirm you run the latest version using: ``` composer show flarum/core ``` ### Workarounds **None** ### For more information For any questions or comments on this vulnerability please visit https://discuss.flarum.org/d/27558. For support questions create a discussion at https://discuss.flarum.org/t/support. A reminder that if you ever become aware of a security issue in Flarum, please report it to us privately by emailing [[email protected]](mailto:[email protected]), and we will address it promptly.

如何修補 CVE-2022-41938

要修補 CVE-2022-41938,請將受影響套件升級到下列已修補版本。

• —升級至 1.6.2 或更新版本

CVE-2022-41938 正在被利用嗎?

低 — EPSS 為 1.1%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• >= 1.5.0, < 1.6.2

CVSS 分數