Cyber Resilience

CVE-2026-9422

Medium

Published: 25 May 2026

Published
25 May 2026
Modified
29 May 2026
KEV Added
—
Patch
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CVSS Score v4 5.5 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
EPSS Score 0.0039 30.5th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-9422 is a medium-severity Injection (CWE-74) vulnerability. Its CVSS base score is 5.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 30.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A vulnerability was identified in KLiK SocialMediaWebsite 1.0. This issue affects some unknown processing of the component HTTP POST Request Parameter Handler. Such manipulation leads to injection. The attack can be launched remotely. The exploit is publicly available and might…

more

be used.

CWE(s)
CWE-74CWE-707

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Remote injection flaw in public-facing web app component directly enables exploitation of the application (T1190).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-2954Shared CWE-707, CWE-74
CVE-2025-64428Shared CWE-74
CVE-2022-31631Shared CWE-74
CVE-2026-6279Shared CWE-74
CVE-2026-32695Shared CWE-74
CVE-2026-7770Shared CWE-74
CVE-2026-26002Shared CWE-74
CVE-2026-45344Shared CWE-74
CVE-2026-27727Shared CWE-74
CVE-2026-5002Shared CWE-707, CWE-74

Affected Assets

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SA-11 Developer Testing and Evaluation
addresses: CWE-74

Developer assessments and testing (including injection-focused techniques) identify improper neutralization of special elements, and the verifiable flaw remediation corrects them pre-deployment.

SA-15 Development Process, Standards, and Tools
addresses: CWE-707

Enforces use of documented standards and tool configurations that address proper neutralization of inputs/outputs during development.

SI-4 System Monitoring
addresses: CWE-74

Identifies indicators of injection attacks (command, SQL, LDAP, etc.) via anomaly and attack monitoring.

References