GitHub Advisoryadvisory · Packagist

GHSA-fm53-mpmp-7qw2 Possible cross-site scripting attack via unsanitized SVG files in FoF Upload

HIGH Published 2022-05-25 Modified 2022-05-25 Official page ↗
Aliases
CVE-2022-30999
Ecosystem
Packagist
Packages
fof/upload
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Weaknesses
CWE-79
Reviewed
2022-05-25

Affected packages

• Packagist fof/upload: < 1.2.3 → fixed in 1.2.3

Description

Impact If FoF Upload is configured to allow the uploading of SVG files (`image/svg+xml`), navigating directly to an SVG file URI could execute arbitrary Javascript code decided by an attacker. This Javascript code could include the execution of HTTP web requests to Flarum, or any other web service. This could allow data to be leaked by an authenticated Flarum user, or, possibly, for data to be modified maliciously. Patches This has been patched with v1.2.3, which now sanitizes uploaded SVG files. Workarounds Upgrade to `1.2.3` (requires Flarum 1.2 or later), or remove the ability for users to upload SVG files through FoF Upload. References Thank you to Safwat Refaat for the responsible disclosure of this vulnerability.

Related

Alias · CVE (1)

  • CVE-2022-30999 FriendsofFlarum (FoF) Upload is an extension that handles file uploads intelligently for your forum. vulnerability

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References