Vulnerability · Published Apr 29, 2026 · Assigned by INCIBE

CVE-2026-3325SQL injection in MegaCMS by CRM Sistemas de Fidelización

Critical 10.0

In plain English

A critical-severity SQL injection in MegaCMS from CRM Sistemas de Fidelización. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 4.0)10.0Critical

Exploit odds (30 days)0.3%top 81.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

SQL injection (SQLi) in MegaCMS v12.0.0, specifically in the “id_territorio” parameter of the “/web_comunications/cms/get_provincias” endpoint. The vulnerability arises from inadequate validation and sanitisation of user input. Specifically, via a POST request, the “id_territorio” parameter, used immediately after the registration form is submitted, could be manipulated by an unauthenticated attacker to execute arbitrary SQL queries.

Affected products (as reported)

Vendor	Product	Versions
CRM Sistemas de Fidelización	MegaCMS	12.0.0

Weakness: CWE-89 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L

References

https://www.incibe.es/en/incibe-cert/notices/aviso/sql-injection-megacms-crm-sistemas-de-fidelizacion patch