What is CVE-2025-45387?

CVE-2025-45387 is a medium-severity vulnerability in Osticket, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-06-02.

How severe is CVE-2025-45387?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Osticket

CVE-2025-45387

osTicket prior to v1.17.6 and v1.18.2 are vulnerable to Broken Access Control Vulnerability in /scp/ajax.php.

Vulnerability class: XSS (Cross-Site Scripting)

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

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Osticket

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/osTicket/osTicket (Product)
github.com/osTicket/osTicket/pull/6802/commits/ab6672faa0991de305d4b90a3faa2e3c… (Patch)
github.com/UmerAdeemCheema/CVE-Security-Research/blob/main/OSTicket/Unauthorize… (Third Party Advisory)

Frequently asked questions

What is CVE-2025-45387?: CVE-2025-45387 is a medium-severity vulnerability in Osticket, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-06-02.
How severe is CVE-2025-45387?: Medium severity. CVSS v3 base score is 5.4 out of 10.