What is CVE-2023-51303?

CVE-2023-51303 is a medium-severity vulnerability in Phpjabbers Event Ticketing System, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-02-19.

How severe is CVE-2023-51303?

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

XSS in Phpjabbers Event Ticketing System

CVE-2023-51303

PHPJabbers Event Ticketing System v1.0 is vulnerable to Multiple HTML Injection in the "lid, name, plugin_sms_api_key, plugin_sms_country_code, title, plugin_sms_api_key, title" parameters.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2025-02-19 · 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: 0.005 (38.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Phpjabbers Event Ticketing System — versions 1.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.phpjabbers.com/event-ticketing-system/ (Product)
packetstorm.news/files/id/176516 (Exploit, VDB Entry, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2023-51303?: CVE-2023-51303 is a medium-severity vulnerability in Phpjabbers Event Ticketing System, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-02-19.
How severe is CVE-2023-51303?: Medium severity. CVSS v3 base score is 6.1 out of 10.