Vulnerability Database · Packagist · Package report
flarum/core: vulnerability history, versions and safety
flarum/core is a package in the Packagist ecosystem. Vulert records 9 vulnerabilities for it across 59 releases, from Jun 2021 to Apr 2026. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.
Every vulnerability has a patched version to move to.
No published version shipped hostile code.
Vulert verdict on flarum/core i
Updated on 23 Oct 2026
Every vulnerability Vulert records for this package has a fix, and the newest was recorded 22 Apr 2026. Apply the fixes listed below and you are clear.
What to do: Move the affected dependencies to the fixed versions listed below, then keep the package monitored so the next vulnerability reaches you. Fix it, then keep watch: Vulert alerts you when a new vulnerability affects the version you run. Monitor it with Vulert →
- Vulnerabilities on record 9 over 4 years · 1 in the last year i
- Latest disclosure 22 Apr 2026 i
- Highest CVSS 10.0 i
- With no published fix 0 i
Concerned about your application's security?
Vulert continues monitoring your dependencies and alerts you when new vulnerabilities are disclosed. No installation and no source-code access required.
01 Versions
Which versions are affected
Every version Vulert holds for flarum/core, newest first, with the vulnerabilities that name it. A version with a count of zero has no recorded vulnerabilities; open a version to see the vulnerabilities it is exposed to.
Newest 59 of 59 versions on record. Severity counts are the vulnerabilities recorded against that exact release.
02 Disclosure history
How often vulnerabilities are recorded
Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 1 of the 9 were recorded in the last 12 months.
03 Vulnerabilities
Recorded vulnerabilities for flarum/core
| Vulnerability | Severity | Fixed version ↓ | Disclosed ↓ |
|---|---|---|---|
| CVE-2021-32671: XSS vulnerability in Flarum's translation system | 10.0 critical | 1.0.2 | 07 Jun 2021 |
| CVE-2022-41938: Cross-Site Scripting Vulnerability in Flarum/Core | 9.0 critical | 1.6.2 | 21 Nov 2022 |
| CVE-2023-40033: Flarum vulnerable to LFI and Blind SSRF via Avatar upload | 7.1 high | 1.8.0 | 16 Aug 2023 |
| CVE-2023-22488: Flarum Core - Flarum notifications can leak restricted content | 6.8 medium | 1.6.3 | 10 Jan 2023 |
| CVE-2025-27794: Flarum Session Hijacking Vulnerability via Authoritative Subdomain Cookie Overwrite | 6.8 medium | 1.8.10 | 12 Mar 2025 |
Vulnerability wrong, a fix missing, or a package we should cover? Report it and we will fix the record. Report Vulnerability Provide Feedback
Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315
