CVE-2025-54174: Opensolution Quick.cms CSRF Vulnerability

CVE-2025-54174 Overview

CVE-2025-54174 is a Cross-Site Request Forgery (CSRF) vulnerability in Opensolution Quick.cms affecting the article creation functionality. An attacker can craft a malicious website that, when visited by an authenticated administrator, silently submits a POST request creating an attacker-controlled article. The vulnerability was confirmed in Quick.cms version 6.8, though other versions may also be affected because the vendor did not confirm a fixed version range. The flaw maps to CWE-352 and was published to the NVD on August 20, 2025.

Critical Impact
An admin visiting a malicious page can be forced to publish arbitrary content on the CMS, enabling defacement, stored payload staging, or downstream phishing.

Affected Products

Opensolution Quick.cms 6.8 (confirmed vulnerable)
Earlier Quick.cms versions (untested, potentially vulnerable)
Later Quick.cms versions (untested, potentially vulnerable)

Discovery Timeline

2025-08-20 - CVE-2025-54174 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-54174

Vulnerability Analysis

The vulnerability resides in the article creation endpoint of Quick.cms. The application accepts state-changing POST requests without validating a per-session anti-CSRF token or verifying request origin. Any authenticated admin session cookie is sufficient to authorize the request, so a cross-origin form submission triggered by an attacker's page succeeds transparently.

Exploitation requires user interaction, specifically an administrator visiting an attacker-controlled URL while logged into the CMS. The result is unauthorized content creation with the admin's privileges. Impact is limited to integrity of published content — the CVSS 4.0 vector reports no confidentiality or availability impact, but subsequent integrity loss (SI:L) on downstream site visitors is significant when malicious articles serve phishing lures or scripted payloads.

EPSS currently rates exploitation probability at 0.133%, and no public proof-of-concept or in-the-wild exploitation has been reported.

Root Cause

The root cause is missing CSRF protection on the article creation handler. The endpoint does not require a synchronizer token, does not validate the Origin or Referer header, and does not use the SameSite cookie attribute to constrain cross-site cookie transmission. Any of these controls would break the attack chain.

Attack Vector

The attack is network-based and requires no attacker privileges. An attacker hosts a page containing an auto-submitting HTML form or fetch call targeting the Quick.cms article creation URL. When a signed-in admin loads the page, the browser attaches the admin session cookie and the article is created with attacker-supplied fields.

No verified proof-of-concept code has been published. Refer to the CERT Poland advisory for technical details on the disclosed Quick.cms CSRF issues.

Detection Methods for CVE-2025-54174

Indicators of Compromise

Newly published articles with unusual authorship metadata, unexpected timestamps, or content the admin does not recognize.
Web server access logs showing POST requests to the article creation endpoint with Referer headers pointing to external, unrelated domains.
Admin session activity originating from a legitimate IP but immediately following navigation to an untrusted external URL.

Detection Strategies

Alert on POST requests to Quick.cms administrative endpoints where the Referer or Origin header is absent, empty, or does not match the CMS hostname.
Compare CMS content creation events against a baseline of expected admin publishing windows and flag out-of-band activity.
Deploy a web application firewall (WAF) rule that enforces same-origin Referer/Origin checks on /admin/ POST routes.

Monitoring Recommendations

Log and retain full HTTP request headers for all administrative endpoints, not just the request line and status code.
Monitor the CMS sw_articles table or equivalent for insert operations outside change-management windows.
Track admin browser sessions for cross-origin form submissions using content security policy (CSP) reporting.

How to Mitigate CVE-2025-54174

Immediate Actions Required

Restrict administrative panel access to a VPN or IP allowlist to reduce cross-site attack surface until a patch is available.
Instruct administrators to log out of Quick.cms when not actively editing content and to use a dedicated browser profile for CMS work.
Audit recently created articles in version 6.8 installations for unauthorized content.

Patch Information

No vendor advisory or fixed version has been published. The vendor was notified but did not confirm a vulnerable version range or remediation timeline. Monitor the OpenSolution Quick.cms product page and the CERT Poland advisory for updates.

Workarounds

Set session cookies with SameSite=Strict or SameSite=Lax at the web server or reverse proxy layer to block cross-site cookie transmission.
Deploy a WAF rule that rejects POST requests to Quick.cms admin routes when the Origin header does not match the site's canonical hostname.
Require administrators to use a browser extension or profile isolation to prevent authenticated CMS sessions from coexisting with general browsing.

bash

# Nginx snippet: enforce same-origin POSTs to the Quick.cms admin path
location /admin/ {
    if ($request_method = POST) {
        set $csrf_ok 0;
        if ($http_origin ~* "^https://cms\.example\.com$") { set $csrf_ok 1; }
        if ($csrf_ok = 0) { return 403; }
    }
    proxy_pass http://quickcms_backend;
}