CVE-2016-9866: phpmyadmin Cross-Site Request Forgery (CSRF)
Vulnerability summary
CVE-2016-9866 is a critical (CVSS 9.8) Cross-Site Request Forgery (CSRF) vulnerability in phpmyadmin. EPSS estimates a 1.03% chance of exploitation in the next 30 days, higher than 63% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3 · Duplicates 1 · Related 2Timeline
- 11-12-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.03%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
+0.01 pp
From 1.02% 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 causeAffected systems
Alpine1 product
- phpmyadmin< 4.4.15.9-r0 | < 4.6.5.2-r0
Debian1 product
- phpmyadmin< 4:4.6.5.1-1
Phpmyadmin1 product
- phpmyadminEOL4.6.0 | 4.6.1 | 4.6.2 | 4.6.3 | 4.6.4 | 4.4.0 | 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 | 4.4.15.8 | 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 | 4.0.10.17
Ubuntu1 product
- phpmyadmin< 4:4.0.10-1ubuntu0.1+esm3 | < 4:4.5.4.1-2ubuntu2.1+esm5
4 vendors · 4 products