Vulnerability Details : CVE-2022-30999
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.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2022-30999
- cpe:2.3:a:friendsofflarum:upload:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-30999
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 35 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-30999
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST | |
8.7
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N |
2.3
|
5.8
|
GitHub, Inc. |
CWE ids for CVE-2022-30999
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: security-advisories@github.com (Primary)
References for CVE-2022-30999
-
https://github.com/FriendsOfFlarum/upload/pull/318
Clean and validate uploaded SVG files by imorland · Pull Request #318 · FriendsOfFlarum/upload · GitHubPatch;Third Party Advisory
-
https://github.com/FriendsOfFlarum/upload/issues/68
uploading SVG images fails · Issue #68 · FriendsOfFlarum/upload · GitHubExploit;Issue Tracking;Third Party Advisory
-
https://github.com/FriendsOfFlarum/upload/releases/tag/1.2.3
Release 1.2.3 · FriendsOfFlarum/upload · GitHubPatch;Third Party Advisory
-
https://github.com/FriendsOfFlarum/upload/security/advisories/GHSA-fm53-mpmp-7qw2
Possible cross-site scripting attack via unsanitized SVG files in fof/upload · Advisory · FriendsOfFlarum/upload · GitHubThird Party Advisory
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