The cybersecurity community is on edge after the CISA issued an urgent warning about a critical security flaw in the Drupal CMS, which is already being actively exploited by attackers. The US cybersecurity agency has given a strict deadline for US federal agencies to secure their servers immediately.
The vulnerability, listed as CVE-2026-9082, concerns an unauthorized SQL injection attack in Drupal's database abstraction API. The issue affects installations using PostgreSQL and can be exploited remotely without requiring authentication.
Successful exploitation allows attackers to gain access to sensitive data, escalate privileges within the system, and in some cases even achieve remote code execution. For a CMS used by governments, universities, research institutions, and large organizations worldwide, the threat is considered particularly serious.
Drupal remains a key target for cyberattacks
Drupal is one of the most popular enterprise content management systems internationally and is widely used in infrastructures that manage huge volumes of data or multiple websites simultaneously. Its flexibility and adaptability have made it particularly popular with government organizations, universities and high-traffic media platforms.
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Precisely because of this widespread use, any serious vulnerability in Drupal automatically becomes a high-value target for cybercrime groups and state-sponsored attackers.
The new vulnerability was discovered by Google/Mandiant researcher Michael Maturi, and the Drupal security team rated it “extremely critical” upon initial announcement. It was also confirmed that actual exploit attempts before the patches were even officially released.
This is an indication that the attackers had either already independently discovered the flaw or were able to analyze it very quickly after technical details were made public.
How does a SQL injection attack work?
SQL injection remains one of the most enduring and dangerous attack techniques on web applications. Essentially, the attacker manages to “insert” malicious SQL queries into requests to the application, bypassing control mechanisms.
In the case of Drupal, the problem lies in the way the API handles certain database requests in PostgreSQL environments. Through specially crafted requests, attackers can interact directly with the system's database.
This can lead to the leakage of sensitive information, data modification, creation of new administrator accounts , or even complete server takeover in combination with other techniques.
Analysts warn that such vulnerabilities are particularly dangerous on publicly accessible websites, as they can be exploited en masse through automated scanning tools.
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Hundreds of outdated Drupal sites remain exposed
Threat monitoring group Shadowserver has revealed that nearly 670 Drupal installations still remain exposed online without the necessary security updates.
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Most vulnerable installations are located in North America and Europe, regions where Drupal is used extensively by government and educational organizations.
Security experts note that the actual number is likely even higher, as many organizations delay applying patches to production environments due to fear of incompatibility or downtime.
However, in the case of actively exploited vulnerabilities, delaying the installation of updates dramatically increases the risk of a breach.
CISA pushes for immediate restoration
CISA called on federal agencies and all private sector organizations to immediately proceed with the implementation of patches for CVE-2026-9082.
The agency emphasized that SQL injection vulnerabilities remain one of the most common ways of initial access for cybercriminals and ransomware groups. In recent years, several critical Drupal vulnerabilities have been exploited in real ransomware attacks, leading to breaches of corporate and government networks.
See also: KnowledgeDeliver LMS: Vulnerability allows RCE attacks
CISA's guidance is clear: where immediate mitigations cannot be implemented, organizations should isolate or even temporarily shut down affected systems.
CMS cybersecurity is becoming increasingly critical
The new crisis surrounding Drupal highlights once again how critical CMS platforms have become in modern digital infrastructure. Websites of governments, universities, research institutions and businesses now rely on complex web ecosystems that are a permanent target of attacks.
As attackers increasingly automate the process of searching for vulnerabilities, the speed of installing security updates becomes a critical survival factor for any organization that maintains publicly accessible infrastructure.
source: www.bleepingcomputer.com
