What is CVE-2025-54540?

CVE-2025-54540 is a medium-severity vulnerability in Opensolution Quick.cms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-08-28.

How severe is CVE-2025-54540?

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

XSS in Opensolution Quick.cms

CVE-2025-54540

QuickCMS is vulnerable to Reflected XSS via sSort parameter in admin's panel functionality. A malicious attacker can craft a specially crafted URL that, when opened, results in arbitrary JavaScript execution in the victim's browser. The v…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (14.7th percentile) — read the EPSS interpretation.

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.

Affected products

Opensolution Quick.cms — versions 6.8
Opensolution Quickcms — versions 6.8

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cvd@cert.pl (Third Party Advisory, third-party-advisory)
cvd@cert.pl (Product, product)

Frequently asked questions

What is CVE-2025-54540?: CVE-2025-54540 is a medium-severity vulnerability in Opensolution Quick.cms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-08-28.
How severe is CVE-2025-54540?: Medium severity. CVSS v3 base score is 6.1 out of 10.