CVE-2025-54477 Joomla! Core - [20250902] User-Enumeration in passkey authentication method
Medium 5.3
Published
Updated
Check this codebase for CVE-2025-54477 and fix it if it is affected.
What it is: CVE-2025-54477 is a medium-severity vulnerability in Joomla! CMS, published on 30 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-54477 in the wild and no public exploit code.
Affected product: Joomla! CMS. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2025-54477/ (Markdown: https://insights.sbomify.com/CVE-2025-54477/index.md)
Attackers can enumerate valid users via the passkey authentication method in Joomla CMS, potentially aiding targeted attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-54477?
CVE-2025-54477 is a medium-severity vulnerability in Joomla! CMS, published on 30 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper handling of authentication requests lead to a user enumeration vector in the passkey authentication method.
Weakness: CWE-203
Which versions are affected by CVE-2025-54477?
How do I fix CVE-2025-54477?
No fix has been published for CVE-2025-54477 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-54477 being exploited?
There is no known exploitation of CVE-2025-54477 in the wild and no public exploit code.
Sources
Also known as GHSA-ph37-2cqr-gfc5.