CVE-2025-54543 — MEDIUM (4.8)

Vulnerability Description

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 edited page. By default admin user is not able to add JavaScript into the website. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.8 was tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.

CVSS Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Opensolution	Quick.Cms	6.8

Related Weaknesses (CWE)

CWE-79

References

https://cert.pl/posts/2025/08/CVE-2025-54540Third Party Advisory
https://opensolution.orgProduct

FAQ

What is CVE-2025-54543?

CVE-2025-54543 is a vulnerability with a CVSS score of 4.8 (MEDIUM). 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...

How severe is CVE-2025-54543?

CVE-2025-54543 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-54543?

Check the references section above for vendor advisories and patch information. Affected products include: Opensolution Quick.Cms.