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Redeight CMS CVE-2026-53690

| EUVDEUVD-2026-40292 CRITICAL
SQL Injection (CWE-89)
2026-06-30 CERT-PL GHSA-722f-j64m-mq4x
SQLi PHP Redeight Cms
9.3
CVSS 4.0 · Vendor: CERT-PL
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Severity by source

Vendor (CERT-PL) PRIMARY
9.3 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
9.4 CRITICAL

Unauthenticated network-reachable login-endpoint SQLi (AV:N/AC:L/PR:N/UI:N) yields full DB read and tampering (C:H/I:H) with only minor availability impact (A:L).

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (CERT-PL).

CVSS VectorVendor: CERT-PL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
Jun 30, 2026 - 12:15 vuln.today

DescriptionCVE.org

An SQL Injection vulnerability exists in Redeight CMS version 1.0 via the "userEmail" parameter in the POST "/admin/index.php" login endpoint. The application fails to sanitize user input and directly interpolates it into SQL queries without using prepared statements, which allows unauthenticated remote attackers to execute arbitrary SQL commands and extract sensitive database information.

Articles & Coverage 1

News Critical SQL Injection in Redeight CMS 1.0 - CVE-2026-53690 Jun 30, 2026

AnalysisAI

SQL injection in Redeight CMS 1.0 lets unauthenticated remote attackers extract sensitive database contents by injecting through the 'userEmail' POST parameter of the /admin/index.php login endpoint. Because user input is interpolated directly into SQL without prepared statements, an attacker needs no credentials and no user interaction to read or manipulate backend data, including admin authentication material. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Locate exposed /admin/index.php login
Delivery
Craft SQLi payload in userEmail parameter
Exploit
Submit POST to bypass/abuse login query
Execution
Enumerate schema via UNION/blind injection
Persist
Exfiltrate credentials and sensitive data
Impact
Escalate to admin control
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Vulnerability AssessmentAI

Exploitation Exploitation requires network reachability to the Redeight CMS admin login at POST /admin/index.php and the ability to submit the 'userEmail' parameter - no authentication, credentials, or user interaction are needed (CVSS PR:N/UI:N), so any internet- or LAN-exposed instance of Redeight CMS 1.0 running default code is exploitable. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Multiple signals point to genuine, high real-world severity for any exposed instance: the CVSS 4.0 vector AV:N/AC:L/AT:N/PR:N/UI:N describes network-reachable, low-complexity, unauthenticated exploitation with no user interaction, which matches the description of an unauthenticated injection on a login endpoint. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker who can reach the CMS sends a crafted POST request to /admin/index.php with a SQL injection payload in the 'userEmail' field, bypassing the login query and/or using a UNION/blind technique to dump the users table. With no credentials or user interaction required, they extract admin password hashes and other sensitive records and pivot to full administrative control. …
Remediation No vendor-released patch identified at time of analysis, and no fix version is present in the provided data, so do not assume a specific patched release exists - verify directly via the CERT-PL advisory at https://cert.pl/posts/2026/06/CVE-2026-53690 and the Redeight vendor. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

24 hours: Identify all systems running Redeight CMS 1.0; restrict network access to /admin/index.php to trusted IP ranges only, or take the application offline. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-53690 vulnerability details – vuln.today
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