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CVE-2022-30999

20
FAUCET Score

CVE-2022-30999 is a cross-site scripting (XSS) vulnerability affecting FriendsofFlarum (FoF) Upload versions prior to 1.2.3. If configured to allow SVG file uploads, an attacker can embed arbitrary JavaScript code within an SVG file. Navigating directly to this SVG file URI could execute the attacker's script, potentially leading to data leakage or malicious data modification. The vulnerability has a CVSS score of 5.4 (Medium), indicating a network attack vector, low attack complexity, and requiring user interaction. It could result in limited confidentiality and integrity impacts. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE. A patch is available in FoF Upload v1.2.3, and a workaround involves disabling SVG file uploads.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.3CPE matchmatch criteria
cpe:2.3:a:friendsofflarum:upload:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.7HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
5.8
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.15%
Probability of exploitation in next 30 days
EPSS Percentile
63.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0115 is in the 94th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: fof/uploadFixed in: 1.2.3
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-fm53-mpmp-7qw2high

Possible cross-site scripting attack via unsanitized SVG files in FoF Upload

May 25, 2022

References

github.com / FriendsOfFlarum/upload/issues/68
ExploitIssue TrackingThird Party Advisory
github.com / FriendsOfFlarum/upload/pull/318
PatchThird Party Advisory
github.com / FriendsOfFlarum/upload/releases/tag/1.2.3
PatchThird Party Advisory
github.com / FriendsOfFlarum/upload/security/advisories/GHSA-fm53-mpmp-7qw2
Third Party Advisory