← Vulnerability feed

Vulnerability record · CVE-2022-41938 · published 19 November 2022

CVE-2022-41938: Flarum cross-site scripting vulnerability

Flarum · Flarum

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.

5.4 CVSS 3.1 Medium EPSS 0.74% · top 47.3% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score
0.74%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://discuss.flarum.org/d/27558 Vendor Advisory
https://github.com/flarum/framework/commit/690de9ce0ffe7ac4d45b73e303f44340c3433138 PatchThird Party Advisory
https://github.com/flarum/framework/security/advisories/GHSA-7x4w-j98p-854x Third Party Advisory
https://discuss.flarum.org/d/27558 Vendor Advisory
https://github.com/flarum/framework/commit/690de9ce0ffe7ac4d45b73e303f44340c3433138 PatchThird Party Advisory
https://github.com/flarum/framework/security/advisories/GHSA-7x4w-j98p-854x Third Party Advisory

Track CVE-2022-41938 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2021-32671Flarum cross-site scripting vulnerabilityFlarum is a forum software for building communities. Flarum's translation system allowed for string inputs to be converted into HTML DOM nodes when r…EPSS 40%8.8CVE-2019-13183Flarum cross-site request forgery vulnerabilityFlarum before 0.1.0-beta.9 allows CSRF against all POST endpoints, as demonstrated by changing admin settings.EPSS 0.79%7.5CVE-2019-11514Flarum vulnerabilityUser/Command/ConfirmEmailHandler.php in Flarum before 0.1.0-beta.8 mishandles invalidation of user email tokens.EPSS 1.3%7.1CVE-2023-40033Flarum server-side request forgery (ssrf) vulnerabilityFlarum is an open source forum software. Flarum is affected by a vulnerability that allows an attacker to conduct a Blind Server-Side Request Forgery…EPSS 0.50%6.8CVE-2025-27794Flarum injection vulnerabilityFlarum is open-source forum software. A session hijacking vulnerability exists in versions prior to 1.8.10 when an attacker-controlled authoritative …EPSS 0.49%5.4CVE-2023-22488Flarum missing authorization vulnerabilityFlarum is a forum software for building communities. Using the notifications feature, one can read restricted/private content and bypass access check…EPSS 0.40%5.3CVE-2018-19133Flarum information exposure vulnerabilityIn Flarum Core 0.1.0-beta.7.1, a serious leak can get everyone's email address.EPSS 1.2%4.9CVE-2023-27577Flarum path traversal vulnerabilityflarum is a forum software package for building communities. In versions prior to 1.7.0 an admin account which has already been compromised by an att…EPSS 0.85%

Source: NIST National Vulnerability Database (record CVE-2022-41938), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.