CVE-2022-30999

Name: CVE-2022-30999
Creator: NVD / NIST
Published: 2022-06-02T14:15:56.373+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 1.12%

Last modified Jun 17, 2026

CVE-2022-30999 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. FriendsofFlarum (FoF) Upload is an extension that handles file uploads intelligently for your forum. If FoF Upload prior to version 1.2.3 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. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

FriendsofFlarum (FoF) Upload is an extension that handles file uploads intelligently for your forum. If FoF Upload prior to version 1.2.3 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. This issue has been patched with v1.2.3, which now sanitizes uploaded SVG files. As a workaround, remove the ability for users to upload SVG files through FoF Upload.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.12%

62.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Friendsofflarum	Upload	< 1.2.3

References

https://github.com/FriendsOfFlarum/upload/issues/68Exploit, Issue Tracking, Third Party Advisory
https://github.com/FriendsOfFlarum/upload/pull/318Patch, Third Party Advisory
https://github.com/FriendsOfFlarum/upload/releases/tag/1.2.3Patch, Third Party Advisory
https://github.com/FriendsOfFlarum/upload/security/advisories/GHSA-fm53-mpmp-7qw2Third Party Advisory
https://github.com/FriendsOfFlarum/upload/issues/68Exploit, Issue Tracking, Third Party Advisory
https://github.com/FriendsOfFlarum/upload/pull/318Patch, Third Party Advisory
https://github.com/FriendsOfFlarum/upload/releases/tag/1.2.3Patch, Third Party Advisory
https://github.com/FriendsOfFlarum/upload/security/advisories/GHSA-fm53-mpmp-7qw2Third Party Advisory

Timeline

Published: Jun 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-30999?

How severe is CVE-2022-30999?

CVE-2022-30999 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.

How do I fix CVE-2022-30999?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-30999?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST