What is CVE-2023-51308?

CVE-2023-51308 is a medium-severity vulnerability in Phpjabbers Car Park Booking System, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.1/10. Published 2025-02-20.

How severe is CVE-2023-51308?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Phpjabbers Car Park Booking System

CVE-2023-51308

PHPJabbers Car Park Booking System v3.0 is vulnerable to Multiple HTML Injection in the "name, plugin_sms_api_key, plugin_sms_country_code, title, plugin_sms_api_key, title" parameters.

Published 2025-02-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (26.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Phpjabbers Car Park Booking System — versions 3.0

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References

www.phpjabbers.com/car-park-booking/ (Product)
packetstorm.news/files/id/176491 (Exploit, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2023-51308?: CVE-2023-51308 is a medium-severity vulnerability in Phpjabbers Car Park Booking System, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.1/10. Published 2025-02-20.
How severe is CVE-2023-51308?: Medium severity. CVSS v3 base score is 6.1 out of 10.