Cyber Resilience

CVE-2025-40639

High

Published: 09 March 2026

Published
09 March 2026
Modified
10 March 2026
KEV Added
—
Patch
—
CVSS Score v4 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/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
EPSS Score 0.0032 23.7th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2025-40639 is a high-severity SQL Injection (CWE-89) vulnerability in Sbitsoft Eventobot. Its CVSS base score is 8.7 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 23.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

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

Deeper analysis

CVE-2025-40639 is a SQL injection vulnerability (CWE-89) discovered in Eventobot, specifically through the 'promo_send' parameter in the '/assets/php/calculate_discount.php' endpoint. Published on 2026-03-09, it carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), classifying it as critical due to its potential for severe impacts across confidentiality, integrity, and availability.

The vulnerability enables an unauthenticated remote attacker with network access to exploit it with low complexity and no user interaction. Exploitation grants the ability to retrieve, create, update, and delete database contents, potentially compromising the entire backend database.

The primary advisory from INCIBE-CERT, available at https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-eventobot, addresses multiple vulnerabilities in Eventobot, including CVE-2025-40639, and provides details on affected versions and recommended mitigations for security practitioners.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

A SQL injection vulnerability has been found in Eventobot. This vulnerability allows an attacker to retrieve, create, update and delete databases through the 'promo_send' parameter in the '/assets/php/calculate_discount.php'.

CWE(s)
CWE-89

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 →
T1213.006 Databases Collection
Adversaries may leverage databases to mine valuable information.
attack.mitre.org →
Why these techniques?

Direct remote exploitation of public web app via SQLi (T1190) enabling full DB access/manipulation (T1213.006).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2018-25199Shared CWE-89
CVE-2026-27179Shared CWE-89
CVE-2025-0308Shared CWE-89
CVE-2019-25581Shared CWE-89
CVE-2026-27885Shared CWE-89
CVE-2019-25479Shared CWE-89
CVE-2026-1476Shared CWE-89
CVE-2019-25526Shared CWE-89
CVE-2025-69365Shared CWE-89
CVE-2019-25573Shared CWE-89

Affected Assets

sbitsoft
eventobot
all versions

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly requires validation of the 'promo_send' parameter to block SQL injection payloads from compromising the database.

SI-2 Flaw Remediation good match
prevent

Mandates identification, reporting, and correction of the specific SQL injection flaw in '/assets/php/calculate_discount.php'.

AC-6 Least Privilege partial match
prevent

Limits the scope of damage from successful SQL injection by enforcing least privilege on the database account used by the application.

References