CVE-2026-22196

HighPublic PoC

Published: 09 January 2026

Published

09 January 2026

Modified

14 January 2026

KEV Added

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Patch

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CVSS Score 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS Score 0.0002 4.2th percentile

Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-22196 is a high-severity SQL Injection (CWE-89) vulnerability in Gestsup Gestsup. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 4.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Directly requires validation and neutralization of user-controlled inputs during ticket creation to prevent SQL injection manipulation of database queries.

SI-2 Flaw Remediation good match

prevent

Mandates identification, reporting, and correction of the SQL injection flaw through timely upgrades to GestSup version 3.2.60 or later.

SI-9 Information Input Restrictions partial match

prevent

Restricts types, amounts, and characteristics of ticket creation inputs to block malicious SQL payloads from being processed.

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?

SQL injection in web-based ticket system directly enables remote exploitation of the application for data access/modification.

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

NVD Description

GestSup versions prior to 3.2.60 contain a SQL injection vulnerability in ticket creation functionality. User-controlled input provided during ticket creation is incorporated into SQL queries without sufficient neutralization, allowing an authenticated attacker to manipulate database queries. Successful exploitation can result…

in unauthorized access to or modification of database contents depending on database privileges.

Deeper analysisAI

CVE-2026-22196 is a SQL injection vulnerability (CWE-89) affecting GestSup versions prior to 3.2.60, specifically in the ticket creation functionality. User-controlled input provided during ticket creation is incorporated into SQL queries without sufficient neutralization, enabling an authenticated attacker to manipulate database queries. The vulnerability has a CVSS v3.1 base score of 8.1 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N), indicating high severity due to its potential for significant confidentiality and integrity impacts.

An authenticated attacker with low privileges (PR:L) can exploit this vulnerability remotely over the network (AV:N) with low complexity (AC:L) and no user interaction required (UI:N). By injecting malicious SQL payloads during ticket creation, the attacker can alter database queries, potentially resulting in unauthorized access to sensitive data or modification of database contents, limited by the privileges of the database account used by the application.

Mitigation involves upgrading to GestSup version 3.2.60 or later, as indicated by the affected version range. The vendor's changelog at https://gestsup.fr/index.php?page=changelog details the fix, and the VulnCheck advisory at https://www.vulncheck.com/advisories/gestsup-sqli-in-ticket-creation provides additional analysis and recommendations for practitioners.