CVE-2026-93659-writeup

CVE-2026-93659: Stored XSS in Concrete CMS Community Store Leads to Admin Dashboard Takeover Summary | ---|--- CVE| CVE-2026-93659 Component| concretecms-community-store/communitystore Type| Stored Cross-Site Scripting CWE-79 Severity| CVSS v4.0 9.3 Critical / v3.1 8.7 High Affected| All versions...

Concrete CMS <9.5.1 - Unauthenticated File-Usage Internal Metadata Disclosure

Concrete CMS 9.5.0 and below is vulnerable to IDOR combined with a missing authentication gate. The endpoint /ccm/system/dialogs/file/usage/fID accepts an integer file ID in the URL and returns internal site structure data page IDs, versions, URL paths to anyone who sends a GET request. id:...

Concrete CMS <9.5.1 - Unauthenticated File Usage Disclosure

Concrete CMS 9.5.0 and below is vulnerable to unauthenticated file usage disclosure via missing permission check in the usage controller. id: CVE-2026-6826 info: name: Concrete CMS 9.5.1 - Unauthenticated File Usage Disclosure author: str4k3r severity: medium description: | Concrete CMS 9.5.0 and...

Concrete CMS <= 9.5.0 - Unauthenticated Conversation Message Disclosure (IDOR)

Concrete CMS = 9.5.0 contains an IDOR caused by insufficient access control in /ccm/frontend/conversations/messagedetail endpoint, letting unauthenticated attackers enumerate conversation messages and attachments. id: CVE-2026-8237 info: name: Concrete CMS = 9.5.0 - Unauthenticated Conversation...

CVE-2026-18110-PoC

CVE-2026-18110 — Concrete CMS Unauthenticated User Enumeration Summary Concrete CMS 9.0.0 through 9.5.2 does not perform an authorization check on the user selector autocomplete endpoint /ccm/system/user/autocomplete, which backs the "Preview as User" panel and other user-selector components. Thi...

CVE-2026-8337

CVE-2026-8337 CVE-2026-8337 is an Insecure Direct Object Reference IDOR vulnerability in Concrete CMS that affects the Survey feature. Unlike CVE-2026-8347 which involved Express associations, this vulnerability allows an unauthenticated attacker to participate in a restricted/private survey unde...

CVE-2026-8347

CVE-2026-8347 – Insecure Direct Object Reference IDOR in Concrete CMS Overview CVE-2026-8347 is an Insecure Direct Object Reference IDOR vulnerability affecting Concrete CMS versions 9.5.0 and earlier. The issue exists in the Express Association Reorder functionality due to insufficient...

CVE-2026-8239

CVE-2026-8239 CVE-2026-8239 is an Insecure Direct Object Reference IDOR vulnerability affecting Concrete CMS 9.5.0 and earlier.The vulnerability exists in the /ccm/frontend/conversations/getrating endpoint, which allows an attacker to determine whether a conversation message exists and retrieve i...

CVE-2026-8237

CVE-2026-8237 CVE-2026-8237 is an Insecure Direct Object Reference IDOR vulnerability caused by missing authorization checks in Concrete CMS 9.5.0 and earlier.The flaw exists in the /ccm/frontend/conversations/messagedetail endpoint, which returns the full contents of conversation messages based...

CVE-2026-95653

Concrete CMS Community Store before 2.7.8 derives digital product download tokens from order creation timestamps instead of random values, making tokens predictable. Unauthenticated attackers can enumerate sequential order and file identifiers to calculate valid download tokens and retrieve digit...

EUVD-2026-84524

Concrete CMS Community Store before 2.7.8 derives digital product download tokens from order creation timestamps instead of random values, making tokens predictable. Unauthenticated attackers can enumerate sequential order and file identifiers to calculate valid download tokens and retrieve digit...

CVE-2026-95653 Concrete CMS Community Store before 2.7.8 Predictable Digital Download Token

Concrete CMS Community Store before 2.7.8 derives digital product download tokens from order creation timestamps instead of random values, making tokens predictable. Unauthenticated attackers can enumerate sequential order and file identifiers to calculate valid download tokens and retrieve digit...

CVE-2026-95653 Concrete CMS Community Store before 2.7.8 Predictable Digital Download Token

Concrete CMS Community Store before 2.7.8 derives digital product download tokens from order creation timestamps instead of random values, making tokens predictable. Unauthenticated attackers can enumerate sequential order and file identifiers to calculate valid download tokens and retrieve digit...

CVE-2026-95653 Concrete CMS Community Store before 2.7.8 Predictable Digital Download Token

Concrete CMS Community Store before 2.7.8 derives digital product download tokens from order creation timestamps instead of random values, making tokens predictable. Unauthenticated attackers can enumerate sequential order and file identifiers to calculate valid download tokens and retrieve digit...

CVE-2026-95653

Concrete CMS Community Store versions before 2.7.8 contain a predictable digital download token vulnerability. The root cause is that download tokens are derived from order creation timestamps rather than cryptographically random values (in Download.php). Because order and file identifiers are se...

CVE-2026-95653: Generation of Predictable Numbers or Identifiers

Concrete CMS Community Store before 2.7.8 derives digital product download tokens from order creation timestamps instead of random values, making tokens predictable. Unauthenticated attackers can enumerate sequential order and file identifiers to calculate valid download tokens and retrieve digit...

PT-2026-96817

Name of the Vulnerable Software and Affected Versions Concrete CMS Community Store versions prior to 2.7.8 Description Digital product download tokens are derived from order creation timestamps rather than random values, which makes the tokens predictable. Unauthenticated attackers can enumerate...

Exploit for CVE-2026-93659

CVE-2026-93659: Stored XSS in Concrete CMS Community Store Lea...

CVE-2026-93659

Concrete CMS Community Store before 2.7.8 renders customer-supplied order fields without HTML escaping in checkout and admin views. Unauthenticated attackers can store script payloads in billing name, email, or phone fields that execute in authenticated manager sessions to create rogue accounts o...

CVE-2026-93659 Concrete CMS Community Store before 2.7.8 Stored XSS

Concrete CMS Community Store before 2.7.8 renders customer-supplied order fields without HTML escaping in checkout and admin views. Unauthenticated attackers can store script payloads in billing name, email, or phone fields that execute in authenticated manager sessions to create rogue accounts o...