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Vulnerability record · CVE-2024-25627 · published 16 February 2024

CVE-2024-25627: Alf cross-site scripting vulnerability

Alf · Alf

Alf.io is a free and open source event attendance management system. An administrator on the alf.io application is able to upload HTML files that trigger JavaScript payloads. As such, an attacker gaining administrative access to the alf.io application may be able to persist access by planting an XSS payload. This issue has been addressed in version 2.0-M4-2402. Users are advised to upgrade. There are no known workarounds for this vulnerability.

4.8 CVSS 3.1 Medium EPSS 0.43% · top 65.0% CWE-79 · Cross-site scriptingCWE-434 · Unrestricted file upload
4.8CVSS 3.1 base score
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Alf.io is a free and open source event attendance management system. An administrator on the alf.io application is able to upload HTML files that trigger JavaScript payloads. As such, an attacker gaining administrative access to the alf.io application may be able to persist access by planting an XSS payload. This issue has been addressed in version 2.0-M4-2402. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/alfio-event/alf.io/security/advisories/GHSA-gpmg-8f92-37cf ExploitVendor Advisory
https://github.com/alfio-event/alf.io/security/advisories/GHSA-gpmg-8f92-37cf ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-25627), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.