What’s Vulnerable › Vulnerabilities

CVE-2023-2258: Improper Neutralization of Formula Elements in a CSV File in alfio-event/alf.io

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-04-24 · updated 2026-06-17
• Weakness: CWE-1236

Description

Improper Neutralization of Formula Elements in a CSV File in GitHub repository alfio-event/alf.io prior to 2.0-M4-2304.

Affected products

• alfio-event alf.io: before 2.0-m4-2304 — fixed in 2.0-m4-2304

How to fix

Upgrade to a fixed version: alfio-event alf.io 2.0-m4-2304. Check the vendor advisory for mitigations.

References

• https://github.com/alfio-event/alf.io/commit/94e2923a317452e337393789c9f3192dfc1ddac2
• https://huntr.dev/bounties/31eaf0fe-4d91-4022-aa9b-802bc6eafb8f
• https://github.com/alfio-event/alf.io/commit/94e2923a317452e337393789c9f3192dfc1ddac2
• https://huntr.dev/bounties/31eaf0fe-4d91-4022-aa9b-802bc6eafb8f

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