CVE-2022-35921

Name: CVE-2022-35921
Creator: NVD / NIST
Published: 2022-08-01T22:15:10.403+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2022-35921 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. fof/byobu is a private discussions extension for Flarum forum. Affected versions were found to not respect private discussion disablement by users. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

fof/byobu is a private discussions extension for Flarum forum. Affected versions were found to not respect private discussion disablement by users. Users of Byobu should update the extension to version 1.1.7, where this has been patched. Users of Byobu with Flarum 1.0 or 1.1 should upgrade to Flarum 1.2 or later, or evaluate the impact this issue has on your forum's users and choose to disable the extension if needed. There are no workarounds for this issue.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.42%

33.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Friendsofflarum	Byobu	>= 0.32.0, < 1.1.7	—
Friendsofflarum	Byobu	0.30.0	Beta2

References

https://github.com/FriendsOfFlarum/byobu/commit/23dcf93a30f948d30c678a96681f7fdefeba5171Patch, Third Party Advisory
https://github.com/FriendsOfFlarum/byobu/security/advisories/GHSA-6gjm-6wj6-4px5Third Party Advisory
https://github.com/FriendsOfFlarum/byobu/commit/23dcf93a30f948d30c678a96681f7fdefeba5171Patch, Third Party Advisory
https://github.com/FriendsOfFlarum/byobu/security/advisories/GHSA-6gjm-6wj6-4px5Third Party Advisory

Timeline

Published: Aug 1, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-35921?

How severe is CVE-2022-35921?

CVE-2022-35921 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2022-35921?

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-2022-35921?

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

Scan your code now

Source: NVD / NIST