CVE-2022-41938
Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered.
Does this matter?
Lower severity and a low EPSS score (0.71%). Track it; it rarely justifies an emergency change on its own.
Description
Flarum is an open source discussion platform. Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after `v1.5` and was not noticed. This allowed an attacker to inject malicious HTML markup using a discussion title input, either by creating a new discussion or renaming one. The XSS attack occurs after a visitor opens the relevant discussion page. All communities running Flarum from `v1.5.0` to `v1.6.1` are impacted. The vulnerability has been fixed and published as flarum/core `v1.6.2`. All communities running Flarum from `v1.5.0` to `v1.6.1` have to upgrade as soon as possible to v1.6.2. There are no known workarounds for this issue.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.71% probability · 52th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- flarum/flarum
- Source
- security-advisories@github.com
References
- https://discuss.flarum.org/d/27558Vendor Advisory
- https://github.com/flarum/framework/commit/690de9ce0ffe7ac4d45b73e303f44340c3433138Patch, Third Party Advisory
- https://github.com/flarum/framework/security/advisories/GHSA-7x4w-j98p-854xThird Party Advisory
- https://discuss.flarum.org/d/27558Vendor Advisory
- https://github.com/flarum/framework/commit/690de9ce0ffe7ac4d45b73e303f44340c3433138Patch, Third Party Advisory
- https://github.com/flarum/framework/security/advisories/GHSA-7x4w-j98p-854xThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.