What’s Vulnerable › Vulnerabilities

CVE-2026-109328: Admidio 5.0.0 before 5.0.15 Unauthenticated Stored XSS via Registration Name

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-12 · updated 2026-10-15
• Weakness: CWE-79

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.

Affected products

• admidio: from 5.0.0 before 5.0.15 — fixed in 5.0.15

How to fix

Upgrade to a fixed version: admidio 5.0.15. Check the vendor advisory for mitigations.

References

• https://github.com/Admidio/admidio/security/advisories/GHSA-c86v-h8qw-rxjp
• https://www.vulncheck.com/advisories/admidio-5.0.0-before-5.0.15-unauthenticated-stored-xss-via-registration-name
• https://github.com/Admidio/admidio/security/advisories/GHSA-c86v-h8qw-rxjp

Get alerted when CVE-2026-109328 or the next vulnerability affects your stack