What is CVE-2023-51298?

CVE-2023-51298 is a medium-severity vulnerability in Phpjabbers Event Booking Calendar, classified under Improper Neutralization of Formula Elements in a CSV File. CVSS score: 4.7/10. Published 2025-02-19.

How severe is CVE-2023-51298?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Vulnerability in Phpjabbers Event Booking Calendar

CVE-2023-51298

PHPJabbers Event Booking Calendar v4.0 is vulnerable to CSV Injection vulnerability which allows an attacker to execute remote code. The vulnerability exists due to insufficient input validation on Languages section Labels any parameters field in System Options that is used to construct CSV file.

Published 2025-02-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Phpjabbers Event Booking Calendar — versions 4.0

Weakness classification (CWE)

CWE-1236 — Improper Neutralization of Formula Elements in a CSV File

References

www.phpjabbers.com/event-booking-calendar/ (Product)
packetstormsecurity.com/files/176487/PHPJabbers-Event-Booking-Calendar-4.0-CSV-… (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2023-51298?: CVE-2023-51298 is a medium-severity vulnerability in Phpjabbers Event Booking Calendar, classified under Improper Neutralization of Formula Elements in a CSV File. CVSS score: 4.7/10. Published 2025-02-19.
How severe is CVE-2023-51298?: Medium severity. CVSS v3 base score is 4.7 out of 10.