CVE-2026-103693: Frontend Dashboard PHP object injection vulnerability
critical 9.0 published 2026-10-29
- Affected versions
- older than 3.0.5
- Fixed in
- 3.0.5
- Latest version
- 3.1.1
- Severity
- Critical · CVSS 9.0
- Active installs
- 400+
- Type
- PHP object injection
What an attacker needs
- Access: None. No account or login is needed.
CVSS vector (score by CISA ADP): CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
What to do now
- Update Frontend Dashboard to 3.0.5 or newer (the latest is 3.1.1): Dashboard → Updates, or Plugins → “update now”.
- If you cannot update right away, deactivate it until you can.
- Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
- Not sure which version you run? Check your version against every known Frontend Dashboard issue.
With WP-CLI:
wp plugin get frontend-dashboard --field=version. - If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.
The advisory
The Frontend Dashboard WordPress plugin before 3.0.5, ProfileGrid WordPress plugin before 6.0.0.5 do not prevent an unauthenticated user from storing a serialized PHP object in user metadata that is deserialized when a public profile is viewed, allowing PHP object injection that can lead to arbitrary file write and potential remote code execution.
References
- NVD CVE-2026-103693 nvd.nist.gov
- WPScan advisory wpscan.com
Related
Ran an affected version? Check your site for signs of a hack
The free scan reads the public side of your site and looks for spam pages, hidden redirects, injected scripts and blacklist entries. No login, no install, about a minute.
Where this data comes from
- CVE record, score and references: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Versions and install counts: wordpress.org/plugins/frontend-dashboard (Plugins API), fetched 2026-11-04.
- The summary, “what an attacker needs” and “what to do” sections are our plain-English reading of the record and the plugin's release history; the quoted description is the record's own text. Spot an error? Email Daniel.