What is CVE-2025-54543?

CVE-2025-54543 is a medium-severity vulnerability in Opensolution Quick.cms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-08-28.

How severe is CVE-2025-54543?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Opensolution Quick.cms

CVE-2025-54543

QuickCMS is vulnerable to Stored XSS via sDescriptionMeta parameter in page editor SEO functionality. Malicious attacker with admin privileges can inject arbitrary HTML and JS into website, which will be rendered/executed when visiting edi…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (8.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/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-2025-54543?: CVE-2025-54543 is a medium-severity vulnerability in Opensolution Quick.cms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-08-28.
How severe is CVE-2025-54543?: Medium severity. CVSS v3 base score is 4.8 out of 10.