Phpmyadmin
CVE-2016-9866
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Anti-CSRF tokens, SameSite cookies
MITRE ATT&CK
1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.22%. |
| Exploit ScenarioDerived | A remote attacker could trick authenticated users into performing unintended actions by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAI
An issue was discovered in phpMyAdmin. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Request Forgery (CSRF) vulnerability could allow attackers to trick authenticated users into performing unintended actions.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in composer
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Cross-Site Request Forgery (CSRF) (CWE-352), which allows attackers to trick authenticated users into performing unintended actions. An issue was discovered in phpMyAdmin. When the arg_separator is different from its default & value, the CSRF token was not properly stripped from the return URL of the preference import action. All 4.6.x versions (prior to 4.6.5), 4.4.x versions (prior to 4.4.15.9), and 4.0.x versions (prior to 4.0.10.18) are affected. Affected products include: Phpmyadmin. Version information: prior to 4.6.5.
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
An issue was discovered in phpMyAdmin. When the arg_separator is different from its default & value, the CSRF token was not properly stripped from the return URL of the preference import action. All 4.6.x versions (prior to 4.6.5), 4.4.x versions (prior to 4.4.15.9), and 4.0.x versions (prior to 4.0.10.18) are affected.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Request Forgery exploits the automatic credential inclusion behavior of web browsers.
Affected Products (CPE)CVE.org
More in Phpmyadmin
View allphpMyAdmin 4.0.x before 4.0.10.16, 4.4.x before 4.4.15.7, and 4.6.x before 4.6.3 does not properly choose delimiters to
phpMyAdmin 3.5.2.2, as distributed by the cdnetworks-kr-1 mirror during an unspecified time frame in 2012, contains an e
phpMyAdmin 3.5.x before 3.5.8 and 4.x before 4.0.0-rc3 allows remote authenticated users to execute arbitrary code via a
An issue was discovered in phpMyAdmin 4.8.x before 4.8.2, in which an attacker can include (view and potentially execute
SQL Injection vulnerability in function getTableCreationQuery in CreateAddField.php in phpMyAdmin 5.x before 5.2.0 via t
An issue was discovered in SearchController in phpMyAdmin before 4.9.6 and 5.x before 5.0.3. Rated critical severity (CV
libraries/plugins/auth/AuthenticationCookie.class.php in phpMyAdmin 4.3.x before 4.3.13.2 and 4.4.x before 4.4.14.1 allo
phpMyAdmin through 5.0.2 allows CSV injection via Export Section. Rated high severity (CVSS 8.8), this vulnerability is
In phpMyAdmin 4 before 4.9.4 and 5 before 5.0.1, SQL injection exists in the user accounts page. Rated high severity (CV
phpMyAdmin 4.8.0 before 4.8.0-1 has CSRF, allowing an attacker to execute arbitrary SQL statements, related to js/db_ope
libraries/common.inc.php in phpMyAdmin 4.0.x before 4.0.10.7, 4.1.x before 4.1.14.8, and 4.2.x before 4.2.13.1 allows re
The Portable phpMyAdmin plugin before 1.3.1 for WordPress allows remote attackers to bypass authentication and obtain ph
GitHub PoC
Exploit-DB