Vvveb Hardcoded Credentials Vulnerability in phpMyAdmin Container

Vvveb, a web page builder, versions before 1.0.8.2 are susceptible to a critical vulnerability stemming from hardcoded credentials within the docker-compose-apache.yaml file. This misconfiguration exposes the bundled phpMyAdmin container, providing unauthenticated attackers with a readily available pathway to compromise the entire Vvveb database. By exploiting these default credentials, attackers circumvent normal authentication procedures and gain complete control over sensitive data. This includes administrator password hashes, customer Personally Identifiable Information (PII), and order details. The ease of exploitation and the potential for significant data breach make this vulnerability a critical risk for any organization using affected versions of Vvveb.

Attack Chain

1. Attacker identifies a Vvveb instance running a version prior to 1.0.8.2.
2. Attacker accesses the phpMyAdmin service exposed by the vulnerable Vvveb instance, typically on port 80 or 443 depending on the configuration.
3. Attacker uses the hardcoded credentials found in the docker-compose-apache.yaml file to authenticate to the phpMyAdmin interface without needing to bypass any security measures.
4. Upon successful authentication, the attacker gains unrestricted read and write access to the entire Vvveb database through the phpMyAdmin interface.
5. Attacker extracts sensitive information, including administrator password hashes, customer PII, and order data.
6. Attacker uses the compromised administrator password hashes to gain administrative access to the Vvveb application.
7. Attacker manipulates database records to modify user accounts, alter orders, or inject malicious code into the website.
8. Attacker achieves full account takeover and data manipulation capabilities, potentially leading to significant financial loss and reputational damage.

Impact

Successful exploitation of this vulnerability allows unauthenticated attackers to compromise the entire Vvveb database. This grants access to sensitive customer data, including PII and financial information, as well as administrator credentials. Consequences include account takeover, data theft, and manipulation of website content. Given the widespread use of phpMyAdmin and the ease of exploitation, organizations running vulnerable versions of Vvveb are at significant risk of data breaches and financial losses. The CVSS v3.1 base score of 9.8 highlights the critical nature of this vulnerability.

Recommendation

• Upgrade Vvveb to version 1.0.8.2 or later to patch CVE-2026-41930.
• If upgrading is not immediately feasible, restrict access to the phpMyAdmin container by modifying firewall rules to only allow access from trusted IP addresses or internal networks.
• Deploy the Sigma rule to detect unauthorized access attempts to the phpMyAdmin interface via specific HTTP requests targeting phpMyAdmin login pages.