QuickCMS exposes admin credentials and XSS vulnerabilities
OpenSolution QuickCMS 6.8 contains hardcoded admin credentials in plaintext config files and stored XSS in language editor, enabling privilege escalation and code injection.
Sourcecert.pl — open the original
What to check
- Applies to
- The 2 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
CERT Polska coordinated disclosure of two vulnerabilities in OpenSolution QuickCMS version 6.8. CVE-2025-9982 involves hardcoded administrator credentials stored in plaintext within configuration files, allowing attackers with filesystem or source code access to retrieve authentication details and escalate privileges. CVE-2025-10018 is a stored cross-site scripting vulnerability in the language editor functionality that permits authenticated administrators to inject arbitrary HTML and JavaScript, which executes on every page despite default restrictions on JavaScript insertion.
The vendor was notified early in the disclosure process but did not respond with vulnerability details or clarification on the affected version range. Testing confirmed version 6.8 as vulnerable; other versions remain untested and may also be affected. Both vulnerabilities require some level of existing access—filesystem access for credential theft, admin privileges for XSS exploitation—but represent significant security weaknesses in the CMS platform.
Organizations running QuickCMS should assess their exposure, particularly if untrusted users have any level of system access or if administrative accounts may be compromised. The lack of vendor response raises concerns about patch availability and ongoing support for affected installations.
Mentioned in this report
Source reporting: https://cert.pl/en/posts/2025/11/CVE-2025-9982
Free public brief. Slack alerts on the vendors you run come with the paid plans, and a new account gets three days of them, no card.
What this brief leaves out
This page is the free tier: the write-up, the severity, the names. In the app the same report carries live profiles of the CVEs it names. The paid plans add the security research and news reporting the free tier leaves out.
It sits in a corpus of 16,433 reports from 149 sources, 661 of them written in the last seven days, and it grows through the day.
A new account starts with three days of all of it, no card, then keeps the government and CERT reporting free. Slack alerts are a paid-plan feature: name the vendors you run and Slack hears about the reports that touch them, not the rest of the week's. Nothing is charged unless you subscribe.
Create a free account What it costs