Vulnerability in Opensolution Quick.cms
CVE-2025-54542
QuickCMS sends password and login via GET Request. This allows a local attacker with access to the victim's browser history to obtain the necessary credentials to log in as the user. 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.001 (2.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Opensolution Quick.cms — versions 6.8
- Opensolution Quickcms — versions 6.8
Weakness classification (CWE)
References
- cert.pl/posts/2025/08/CVE-2025-54540 (Third Party Advisory, third-party-advisory)
- opensolution.org (Product, product)
Frequently asked questions
- What is CVE-2025-54542?
- CVE-2025-54542 is a medium-severity vulnerability in Opensolution Quick.cms, classified under CWE-598. CVSS score: 5.5/10. Published 2025-08-28.
- How severe is CVE-2025-54542?
- Medium severity. CVSS v3 base score is 5.5 out of 10.