CVE-2026-68528

Concrete CMS RSS Displayer block below version 9.5.3 rendered remote feed item titles without HTML escaping, resulting in stored cross-site scripting. An attacker able to control a title in a syndicated feed could execute script in the site origin for any visitor to the affected page, including...

CVE-2026-68528 Concrete CMS 9.5.2 and below is vulnerable to Stored XSS in RSS Displayer Block via Unescaped Remote Feed Item title

Concrete CMS RSS Displayer block below version 9.5.3 rendered remote feed item titles without HTML escaping, resulting in stored cross-site scripting. An attacker able to control a title in a syndicated feed could execute script in the site origin for any visitor to the affected page, including...

CVE-2026-68528 Concrete CMS 9.5.2 and below is vulnerable to Stored XSS in RSS Displayer Block via Unescaped Remote Feed Item title

Concrete CMS RSS Displayer block below version 9.5.3 rendered remote feed item titles without HTML escaping, resulting in stored cross-site scripting. An attacker able to control a title in a syndicated feed could execute script in the site origin for any visitor to the affected page, including...

CVE-2026-68528

Concrete CMS versions below 9.5.3 are vulnerable to a stored cross-site scripting (XSS) flaw in the RSS Displayer block . The root cause is that remote feed item titles are rendered without HTML escaping. An attacker who can control a title in a syndicated feed can inject script that executes in ...

EUVD-2026-76164

Concrete CMS RSS Displayer block below version 9.5.3 rendered remote feed item titles without HTML escaping, resulting in stored cross-site scripting. An attacker able to control a title in a syndicated feed could execute script in the site origin for any visitor to the affected page, including...

EUVD-2026-31379

In Concrete CMS 9.5.0 and below, the RSS Displayer block accepts a feed URL from any page editor and fetches it server-side without validation enabling redirect-to-internal bypasses. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.1 with a...

GHSA-GJWQ-9V8P-47W7 Concrete CMS's RSS Displayer block accepts a feed URL from any page editor and fetches it server-side without validation

In Concrete CMS 9.5.0 and below, the RSS Displayer block accepts a feed URL from any page editor and fetches it server-side without validation enabling redirect-to-internal bypasses...

Server-side Request Forgery (SSRF)

Overview concrete5/concrete5 is a concrete5 open source CMS. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the RSS Displayer process. An attacker can access internal resources by supplying a crafted feed URL that is fetched server-side without validation...

CVE-2026-7890

In Concrete CMS 9.5.0 and below, the RSS Displayer block accepts a feed URL from any page editor and fetches it server-side without validation enabling redirect-to-internal bypasses. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.1 with a...

CVE-2026-7890 Concrete CMS 9.5.0 is vulnerable to SSRF via RSS Displayer Block

In Concrete CMS 9.5.0 and below, the RSS Displayer block accepts a feed URL from any page editor and fetches it server-side without validation enabling redirect-to-internal bypasses. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.1 with a...

CVE-2026-7890 Concrete CMS 9.5.0 is vulnerable to SSRF via RSS Displayer Block

In Concrete CMS 9.5.0 and below, the RSS Displayer block accepts a feed URL from any page editor and fetches it server-side without validation enabling redirect-to-internal bypasses. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.1 with a...

CVE-2026-7890

In Concrete CMS 9.5.0 and below, the RSS Displayer block accepts a feed URL from any page editor and fetches it server-side without validation enabling redirect-to-internal bypasses. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.1 with a...

CVE-2026-7890

Concrete CMS 9.5.0 and earlier are affected by a server-side SSRF in the RSS Displayer block that accepts arbitrary feed URLs without validation, enabling redirect-to-internal bypasses. The CVE-2026-7890 entry documents a CVSSv4.0 score of 2.1 (low) with network attack vector and high privileges ...

CVE-2026-7890 Concrete CMS 9.5.0 is vulnerable to SSRF via RSS Displayer Block

In Concrete CMS 9.5.0 and below, the RSS Displayer block accepts a feed URL from any page editor and fetches it server-side without validation enabling redirect-to-internal bypasses. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.1 with a...

Concrete CMS 代码问题漏洞

Concrete CMS is an open-source content management system developed by Concrete CMS. Versions of Concrete CMS 9.5.0 and earlier have code vulnerabilities. These vulnerabilities stem from the RSS Displayer block accepting arbitrary feed URLs without validation, which may lead to redirection to...

PT-2026-42580

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.5.0 and earlier Description The RSS Displayer block accepts a feed URL from page editors and fetches it server-side without proper validation. This lack of validation allows for redirect-to-internal bypasses, where an...

EUVD-2023-1289

Malicious code in bioql PyPI...

GHSA-Q5WX-M95R-4CGC Concrete CMS Stored Cross-site Scripting vulnerability

Concrete CMS versions 9.0.0 to 9.3.2 and below 8.5.18 are vulnerable to Stored XSS in RSS Displayer when user input is stored and later embedded into responses. A rogue administrator could inject malicious code into fields due to insufficient input validation...

Concrete CMS Stored Cross-site Scripting vulnerability

Concrete CMS versions 9.0.0 to 9.3.2 and below 8.5.18 are vulnerable to Stored XSS in RSS Displayer when user input is stored and later embedded into responses. A rogue administrator could inject malicious code into fields due to insufficient input validation...

CVE-2024-4350

Concrete CMS versions 9.0.0 to 9.3.2 and below 8.5.18 are vulnerable to Stored XSS in RSS Displayer when user input is stored and later embedded into responses. A rogue administrator could inject malicious code into fields due to insufficient input validation. The Concrete CMS security team gave...