CVE-2022-35921
User preference to prevent private discussions not respected in fof/byobu
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
User preference to prevent private discussions not respected in fof/byobu
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.
- Record
CVE-2022-35921- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N - Weakness
- CWE-269
- Updated
- 2026-11-02
EUVDEUVD-2022-6494
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.
- Record
EUVD-2022-6494- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-6gjm-6wj6-4px5
Byobu user preference to prevent private discussions being started are not respected
Impact
Users electing to prevent others starting private discussions with themselves.
Please note that admins and others with appropriate permissions can always bypass this preference, as was the case before.
Patches
Users of Byobu should update the extension to version 1.1.7, where this has been patched. This version is only supported on v1.2.0 and later of Flarum Core.
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.
Workarounds
There are no workarounds for this issue.
- Record
GHSA-6gjm-6wj6-4px5- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N - Weakness
- CWE-269, CWE-863
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2022-35921- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-269, CWE-863
- Updated
- 2026-11-02
OSV
User preference to prevent private discussions not respected in fof/byobu
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.
- Record
CVE-2022-35921- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N - Weakness
- CWE-269
- Updated
- 2026-11-02
OSVGHSA-6gjm-6wj6-4px5
Byobu user preference to prevent private discussions being started are not respected
Impact
Users electing to prevent others starting private discussions with themselves.
Please note that admins and others with appropriate permissions can always bypass this preference, as was the case before.
Patches
Users of Byobu should update the extension to version 1.1.7, where this has been patched. This version is only supported on v1.2.0 and later of Flarum Core.
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.
Workarounds
There are no workarounds for this issue.
- Record
GHSA-6gjm-6wj6-4px5- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N - Weakness
- CWE-269, CWE-863
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
fof/byobuPackagist |
0.3.0-beta.2 up to 1.1.7 | 1.1.7 |
fof/byobuPackagist |
0.3.0-beta.2 up to 1.1.7, plus listed versions 0.3.00.3.0-beta.30.3.10.3.20.3.3 Show 41 moreShow less0.3.40.4.00.4.10.4.20.4.30.4.40.4.50.5.00.5.0-beta.10.5.10.5.20.5.30.5.40.5.50.5.60.5.70.5.80.6.00.6.0-beta.10.6.0-beta.20.6.0-beta.30.6.11.0.01.0.0-beta.11.0.0-beta.21.0.0-beta.31.0.0-beta.41.0.0-beta.51.0.0-beta.61.0.0-beta.71.0.0-beta.81.0.0-beta.91.0.11.0.21.1.01.1.11.1.21.1.31.1.41.1.51.1.6 |
1.1.7 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-35921 is a low vulnerability (CVSS 3.5) in Friendsofflarum Byobu, published August 1, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.53%, the 45th percentile. Fixed in fof/byobu 1.1.7.
References
github.com/FriendsOfFlarum/byobu/security/advisories/GHSA-6gjm-6wj6-4px5
nvd.nist.gov/vuln/detail/CVE-2022-35921