How severe is CVE-2026-32757?

CVE-2026-32757 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-32757 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-32757?

CVE-2026-32757 affects Admidio. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-32757?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-32757 have an EU (EUVD) identifier?

Yes. CVE-2026-32757 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13388.

When was CVE-2026-32757 published?

CVE-2026-32757 was published on 2026-03-20 and last updated on 2026-06-17.

CVE-2026-32757

CVE-2026-32757 is a medium-severity vulnerability in Admidio with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-13388
Weakness: CWE-79
Affected product: Admidio
Published: 2026-03-20
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-32757?: 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.
How severe is CVE-2026-32757?: CVE-2026-32757 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-32757 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-32757?: CVE-2026-32757 affects Admidio. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-32757?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-32757 have an EU (EUVD) identifier?: Yes. CVE-2026-32757 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13388.
When was CVE-2026-32757 published?: CVE-2026-32757 was published on 2026-03-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:admidio:admidio:*:*:*:*:*:*:*:*

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