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Destekz CVE-2026-4321

| EUVDEUVD-2026-41526 CRITICAL
SQL Injection (CWE-89)
2026-07-03 TR-CERT GHSA-fvc7-x7g6-74xj
9.8
CVSS 3.1 · Vendor: TR-CERT
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Severity by source

Vendor (TR-CERT) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
9.8 CRITICAL

Unauthenticated network SQL injection with no user interaction (AV:N/AC:L/PR:N/UI:N) grants full read/write/destroy access to the backend database, so C/I/A are all High.

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

Primary rating from Vendor (TR-CERT).

CVSS VectorVendor: TR-CERT

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
Analysis Generated
Jul 03, 2026 - 10:20 vuln.today

DescriptionCVE.org

Improper neutralization of special elements used in an SQL command ('SQL injection') vulnerability in Raera - Ankara Web Design and Digital Advertising Agency Destekz allows SQL Injection.

This issue affects Destekz: through 02062026. NOTE: The vendor was contacted and it was learned that the product is not supported.

AnalysisAI

SQL injection in Raera's Destekz support/help-desk application (all versions through 02062026) allows remote attackers to inject arbitrary SQL via unsanitized input, per the CVSS:3.1/AV:N/AC:L/PR:N/UI:N vector indicating unauthenticated network exploitation. TR-CERT rates this critical (9.8) with full confidentiality, integrity, and availability impact, meaning an attacker can read, modify, or destroy backend database contents. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Locate exposed Destekz instance
Delivery
Send crafted SQL payload in input parameter
Exploit
Bypass query neutralization (CWE-89)
Execution
Execute arbitrary SQL on backend
Impact
Exfiltrate or modify database records

Vulnerability AssessmentAI

Exploitation No special conditions - remote unauthenticated exploitation against default configurations of Destekz, consistent with AV:N/AC:L/PR:N/UI:N. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Signals are mixed in an important way: the CVSS base score of 9.8 (AV:N/AC:L/PR:N/UI:N, C:H/I:H/A:H) portrays a maximally severe, trivially exploitable, unauthenticated network vulnerability - the profile of a high-priority issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated attacker discovers a public Destekz instance and submits a crafted parameter (e.g., a support-form or query-string field) containing SQL metacharacters, causing the backend to execute attacker-controlled SQL. Using UNION or blind boolean/time-based techniques, they extract credentials and customer records from the database, and given AC:L this requires no special timing or configuration. …
Remediation No vendor-released patch identified at time of analysis - the vendor has confirmed Destekz is no longer supported, so no fix version will be published; the strategic remediation is to decommission and migrate off Destekz entirely. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Inventory all Destekz instances and identify what customer/operational data is stored; assess data sensitivity and breach notification obligations. …

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CVE-2026-4321 vulnerability details – vuln.today

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