CVE-2016-6606: phpmyadmin
Vulnerability summary
CVE-2016-6606 is a high (CVSS 8.1) vulnerability in phpmyadmin. EPSS estimates a 1.39% chance of exploitation in the next 30 days, higher than 71.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3 · Related 1Timeline
- 11-12-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in cookie encryption in phpMyAdmin. The decryption of the username/password is vulnerable to a padding oracle attack. This can allow an attacker who has access to a user's browser cookie file to decrypt the username and password. Furthermore, the same initialization vector (IV) is used to hash the username and password stored in the phpMyAdmin cookie. If a user has the same password as their username, an attacker who examines the browser cookie can see that they are the same - but the attacker can not directly decode these values from the cookie as it is still hashed. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.39%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
0.00 pp
From 1.39% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
- CWE-310Cryptographic IssuesWeaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.
Affected systems
Alpine1 product
- phpmyadmin< 4.4.15.8-r0
Debian1 product
- phpmyadmin< 4:4.6.4+dfsg1-1
Phpmyadmin1 product
- phpmyadminEOL4.4.0 | 4.4.1 | 4.4.1.1 | 4.4.2 | 4.4.3 | 4.4.4 | 4.4.5 | 4.4.6 | 4.4.6.1 | 4.4.7 | 4.4.8 | 4.4.9 | 4.4.10 | 4.4.12 | 4.4.13 | 4.4.13.1 | 4.4.14 | 4.4.14.1 | 4.4.15 | 4.4.15.1 | 4.4.15.2 | 4.4.15.3 | 4.4.15.4 | 4.4.15.5 | 4.4.15.6 | 4.4.15.7 | 4.0.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.0.4 | 4.0.4.1 | 4.0.4.2 | 4.0.5 | 4.0.6 | 4.0.7 | 4.0.8 | 4.0.9 | 4.0.10 | 4.0.10.1 | 4.0.10.2 | 4.0.10.3 | 4.0.10.4 | 4.0.10.5 | 4.0.10.6 | 4.0.10.7 | 4.0.10.8 | 4.0.10.9 | 4.0.10.10 | 4.0.10.11 | 4.0.10.12 | 4.0.10.13 | 4.0.10.14 | 4.0.10.15 | 4.0.10.16 | 4.6.0 | 4.6.1 | 4.6.2 | 4.6.3
Ubuntu1 product
- phpmyadmin< 4:4.0.10-1ubuntu0.1 | < 4:4.5.4.1-2ubuntu2.1
4 vendors · 4 products
