๐Ÿ” CVE Alert

CVE-2026-32757

MEDIUM 5.4

Admidio: HTMLPurifier Bypass in eCard Message Allows HTML Email Injection

CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
2th

Admidio is an open-source user management solution. In versions 5.0.6 and below, the eCard send handler uses a raw $_POST['ecard_message'] value instead of the HTMLPurifier-sanitized $formValues['ecard_message'] when constructing the greeting card HTML. This allows an authenticated attacker to inject arbitrary HTML and JavaScript into greeting card emails sent to other members, bypassing the server-side HTMLPurifier sanitization that is properly applied to the ecard_message field during form validation. An attack can result in any member or role receiving phishing content that appears legitimate, crossing from the web application into recipients' email clients. This issue has been fixed in version 5.0.7.

CWE CWE-79
Vendor admidio
Product admidio
Published Mar 19, 2026
Last Updated Mar 25, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Affected Versions

Admidio / admidio
< 5.0.7

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/Admidio/admidio/security/advisories/GHSA-4wr4-f2qf-x5wj github.com: https://github.com/Admidio/admidio/releases/tag/v5.0.7