Concrete CMS
by Concrete CMS
Source repositories
CVEs (71)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-3452 | Hig | 0.40 | 7.2 | 0.01 | Mar 4, 2026 | Concrete CMS below version 9.4.8 is vulnerable to Remote Code Execution by stored PHP object injection into the Express Entry List block via the columns parameter. An authenticated administrator can store attacker-controlled serialized data in block configuration fields that… | ||
| CVE-2011-3183 | Med | 0.40 | 6.1 | 0.01 | Jan 14, 2020 | A Cross-Site Scripting (XSS) vulnerability exists in the rcID parameter in Concrete CMS 5.4.1.1 and earlier. | ||
| CVE-2026-2994 | Med | 0.37 | 6.8 | 0.00 | Mar 4, 2026 | Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via group_id parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. The Concrete CMS security team… | ||
| CVE-2026-8435 | Med | 0.35 | 6.5 | 0.00 | May 21, 2026 | Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file approveVersion(). The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC… | ||
| CVE-2026-7890 | Med | 0.35 | 6.4 | 0.00 | May 21, 2026 | 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-2026-7887 | Med | 0.35 | 6.4 | 0.00 | May 21, 2026 | For Concrete CMS 9.5.0 and below, OAuth 2.0 Authorization-Code Handler Bypasses Account Status. A user with uIsActive=0 (suspended, banned, terminated employee) can still authenticate via OAuth and receive valid API tokens. The Concrete CMS security team gave this… | ||
| CVE-2026-8140 | Med | 0.35 | 6.5 | 0.00 | May 21, 2026 | Concrete CMS 9.5.0 and below does not validate a CSRF token before processing requests to /dashboard/extend/install/download/. The download() method in concrete/controllers/single_page/dashboard/extend/install.php checks only the canInstallPackages() permission before… | ||
| CVE-2025-3153 | Med | 0.35 | 6.5 | 0.00 | Apr 3, 2025 | Concrete CMS version 9 below 9.4.0RC2 and versions below 8.5.20 are vulnerable to CSRF and XSS in the Concrete CMS Address attribute because addresses are not properly sanitized in the output when a country is not specified. Attackers are limited to individuals whom a site… | ||
| CVE-2021-22953 | Med | 0.35 | 5.4 | 0.00 | Sep 23, 2021 | A CSRF in Concrete CMS version 8.5.5 and below allows an attacker to clone topics which can lead to UI inconvenience, and exhaustion of disk space.Credit for discovery: "Solar Security Research Team" | ||
| CVE-2021-22949 | Med | 0.35 | 5.4 | 0.00 | Sep 23, 2021 | A CSRF in Concrete CMS version 8.5.5 and below allows an attacker to duplicate files which can lead to UI inconvenience, and exhaustion of disk space.Credit for discovery: "Solar Security CMS Research Team" | ||
| CVE-2026-8353 | Med | 0.31 | 4.8 | 0.00 | May 22, 2026 | Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in the Atomik theme. A rogue editor can inject arbitrary JavaScript that executes in the context of any authenticated user visiting the affected account pages. This can lead to session hijacking,… | ||
| CVE-2024-7512 | Med | 0.31 | 4.8 | 0.00 | Aug 12, 2024 | Concrete CMS versions 9.0.0 through 9.3.2 are affected by a stored XSS vulnerability in Board instances. A rogue administrator could inject malicious code. The Concrete CMS security team gave this vulnerability a CVSS 4.0 Score of 4.6 with vector:… | ||
| CVE-2026-8245 | Med | 0.28 | 5.4 | 0.00 | May 21, 2026 | Concrete CMS 9.5.0 and below is vulnerable to Reflected XSS in Legacy Pagination via HTML attribute injection. Concrete\Core\Legacy\Pagination builds pagination links by raw-interpolating its $URL field into href="" (). Any authenticated admin or… | ||
| CVE-2026-8139 | Med | 0.28 | 5.4 | 0.00 | May 21, 2026 | Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via external-link page cvName because updateCollectionAliasExternal bypasses being sanitized. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.0 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/V… | ||
| CVE-2024-7398 | Med | 0.28 | 5.4 | 0.00 | Sep 25, 2024 | Concrete CMS versions 9 through 9.3.3 and versions below 8.5.19 are vulnerable to stored XSS in the calendar event addition feature because the calendar event name was not sanitized on output. Users or groups with permission to create event calendars can embed scripts, and users… | ||
| CVE-2026-8337 | Med | 0.27 | 5.3 | 0.00 | May 21, 2026 | Concrete CMS 9.5.0 and below is vulnerable to IDOR in surveys. To be vulnerable, a site would have to be configured in such a way that both public and private surveys are present on the site. An unauthenticated attacker can vote in the restricted survey by submitting the… | ||
| CVE-2026-8240 | Med | 0.27 | 5.3 | 0.00 | May 21, 2026 | Concrete CMS 9.5.0 and below is vulnerable to unauthenticated page metadata disclosure across every page with a configured summary template, revealing the existence of private, draft, and restricted pages while leaking title, path, description, and author information. The… | ||
| CVE-2026-8239 | Med | 0.27 | 5.3 | 0.00 | May 21, 2026 | Concrete CMS 9.5.0 and below is vulnerable to IDOR. The '/ccm/frontend/conversations/get_rating' endpoint confirms existence and returns rating score for any message by ID. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.3 with… | ||
| CVE-2026-8238 | Med | 0.27 | 5.3 | 0.00 | May 21, 2026 | Concrete CMS 9.5.0 and below is vulnerable to IDOR. The '/ccm/frontend/conversations/message_page' endpoint returns the full content of any conversation message. An unauthenticated attacker can enumerate all conversation messages, including messages from restricted pages,… | ||
| CVE-2026-8237 | Med | 0.27 | 5.3 | 0.00 | May 21, 2026 | Concrete CMS 9.5.0 and below is vulnerable to IDOR. The `/ccm/frontend/conversations/message_detail` endpoint returns the full content of any conversation message. An unauthenticated attacker can enumerate all conversation messages, including messages from restricted pages,… |
- risk 0.40cvss 7.2epss 0.01
Concrete CMS below version 9.4.8 is vulnerable to Remote Code Execution by stored PHP object injection into the Express Entry List block via the columns parameter. An authenticated administrator can store attacker-controlled serialized data in block configuration fields that…
- risk 0.40cvss 6.1epss 0.01
A Cross-Site Scripting (XSS) vulnerability exists in the rcID parameter in Concrete CMS 5.4.1.1 and earlier.
- risk 0.37cvss 6.8epss 0.00
Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via group_id parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. The Concrete CMS security team…
- risk 0.35cvss 6.5epss 0.00
Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file approveVersion(). The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC…
- risk 0.35cvss 6.4epss 0.00
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…
- risk 0.35cvss 6.4epss 0.00
For Concrete CMS 9.5.0 and below, OAuth 2.0 Authorization-Code Handler Bypasses Account Status. A user with uIsActive=0 (suspended, banned, terminated employee) can still authenticate via OAuth and receive valid API tokens. The Concrete CMS security team gave this…
- risk 0.35cvss 6.5epss 0.00
Concrete CMS 9.5.0 and below does not validate a CSRF token before processing requests to /dashboard/extend/install/download/. The download() method in concrete/controllers/single_page/dashboard/extend/install.php checks only the canInstallPackages() permission before…
- risk 0.35cvss 6.5epss 0.00
Concrete CMS version 9 below 9.4.0RC2 and versions below 8.5.20 are vulnerable to CSRF and XSS in the Concrete CMS Address attribute because addresses are not properly sanitized in the output when a country is not specified. Attackers are limited to individuals whom a site…
- risk 0.35cvss 5.4epss 0.00
A CSRF in Concrete CMS version 8.5.5 and below allows an attacker to clone topics which can lead to UI inconvenience, and exhaustion of disk space.Credit for discovery: "Solar Security Research Team"
- risk 0.35cvss 5.4epss 0.00
A CSRF in Concrete CMS version 8.5.5 and below allows an attacker to duplicate files which can lead to UI inconvenience, and exhaustion of disk space.Credit for discovery: "Solar Security CMS Research Team"
- risk 0.31cvss 4.8epss 0.00
Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in the Atomik theme. A rogue editor can inject arbitrary JavaScript that executes in the context of any authenticated user visiting the affected account pages. This can lead to session hijacking,…
- risk 0.31cvss 4.8epss 0.00
Concrete CMS versions 9.0.0 through 9.3.2 are affected by a stored XSS vulnerability in Board instances. A rogue administrator could inject malicious code. The Concrete CMS security team gave this vulnerability a CVSS 4.0 Score of 4.6 with vector:…
- risk 0.28cvss 5.4epss 0.00
Concrete CMS 9.5.0 and below is vulnerable to Reflected XSS in Legacy Pagination via HTML attribute injection. Concrete\Core\Legacy\Pagination builds pagination links by raw-interpolating its $URL field into href="" (). Any authenticated admin or…
- risk 0.28cvss 5.4epss 0.00
Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via external-link page cvName because updateCollectionAliasExternal bypasses being sanitized. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.0 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/V…
- risk 0.28cvss 5.4epss 0.00
Concrete CMS versions 9 through 9.3.3 and versions below 8.5.19 are vulnerable to stored XSS in the calendar event addition feature because the calendar event name was not sanitized on output. Users or groups with permission to create event calendars can embed scripts, and users…
- risk 0.27cvss 5.3epss 0.00
Concrete CMS 9.5.0 and below is vulnerable to IDOR in surveys. To be vulnerable, a site would have to be configured in such a way that both public and private surveys are present on the site. An unauthenticated attacker can vote in the restricted survey by submitting the…
- risk 0.27cvss 5.3epss 0.00
Concrete CMS 9.5.0 and below is vulnerable to unauthenticated page metadata disclosure across every page with a configured summary template, revealing the existence of private, draft, and restricted pages while leaking title, path, description, and author information. The…
- risk 0.27cvss 5.3epss 0.00
Concrete CMS 9.5.0 and below is vulnerable to IDOR. The '/ccm/frontend/conversations/get_rating' endpoint confirms existence and returns rating score for any message by ID. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.3 with…
- risk 0.27cvss 5.3epss 0.00
Concrete CMS 9.5.0 and below is vulnerable to IDOR. The '/ccm/frontend/conversations/message_page' endpoint returns the full content of any conversation message. An unauthenticated attacker can enumerate all conversation messages, including messages from restricted pages,…
- risk 0.27cvss 5.3epss 0.00
Concrete CMS 9.5.0 and below is vulnerable to IDOR. The `/ccm/frontend/conversations/message_detail` endpoint returns the full content of any conversation message. An unauthenticated attacker can enumerate all conversation messages, including messages from restricted pages,…
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