All vulnerabilities
CVE-2026-109328GHSA-c86v-h8qw-rxjp

Admidio 5.0.0 before 5.0.15 Unauthenticated Stored XSS via Registration Name

Admidio admidio
Open in ThreatlineRecord JSON
CVSS
5.3Medium
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 13 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.20%Chance of exploitation activity in the next 30 days, higher than 9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in5.0.15Fixed versionCVE List
Published12 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

  • 5.0.15admidioCVE List
  • 5.0.15admidio/admidio, composerGitHubcomposer require "admidio/admidio:^5.0.15"

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Admidio 5.0.0 before 5.0.15 contains an unauthenticated stored cross-site scripting vulnerability in RegistrationPresenter.php, which inserts the raw FIRST_NAME registration value into an unencoded data-message attribute. Attackers can register with a double-quoted event handler that executes JavaScript in an administrator's session when they hover the entry on the Manage registrations page.

Text from CVE List

Affected versions 3

  • admidioaffected: 5.0.0 before 5.0.15CVE List
  • admidiounaffected: 5.0.15CVE List
  • admidio/admidio, composer<=5.0.14GitHub

References 2