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Vulnerability record · CVE-2023-2259 · published 24 April 2023

CVE-2023-2259: Alf code injection vulnerability

Alf · Alf

Improper Neutralization of Special Elements Used in a Template Engine in GitHub repository alfio-event/alf.io prior to 2.0-M4-2304.

7.2 CVSS 3.1 High EPSS 1.1% · top 36.0% CWE-1336 · CWE-1336CWE-94 · Code injection
7.2CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Improper Neutralization of Special Elements Used in a Template Engine in GitHub repository alfio-event/alf.io prior to 2.0-M4-2304.

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

Affected products

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

References

LinkTags
https://github.com/alfio-event/alf.io/commit/94e2923a317452e337393789c9f3192dfc1ddac2 Patch
https://huntr.dev/bounties/e753bce0-ce82-463b-b344-2f67b39b60ff ExploitThird Party Advisory
https://github.com/alfio-event/alf.io/commit/94e2923a317452e337393789c9f3192dfc1ddac2 Patch
https://huntr.dev/bounties/e753bce0-ce82-463b-b344-2f67b39b60ff ExploitThird Party 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-2023-2259), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.