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Vulnerability details: VCID-g67g-ycx6-ebat
Vulnerability ID VCID-g67g-ycx6-ebat
Aliases CVE-2017-18264
GHSA-5868-g58j-vrj5
Summary An issue was discovered in libraries/common.inc.php in phpMyAdmin 4.0 before 4.0.10.20, 4.4.x, 4.6.x, and 4.7.0 prereleases. The restrictions caused by $cfg['Servers'][$i]['AllowNoPassword'] = false are bypassed under certain PHP versions (e.g., version 5). This can allow the login of users who have no password set even if the administrator has set $cfg['Servers'][$i]['AllowNoPassword'] to false (which is also the default). This occurs because some implementations of the PHP substr function return false when given '' as the first argument.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-269 Improper Privilege Management
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
epss 0.0032 https://api.first.org/data/v1/epss?cve=CVE-2017-18264
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-5868-g58j-vrj5
cvssv3.1 9.8 https://github.com/phpmyadmin/composer
generic_textual CRITICAL https://github.com/phpmyadmin/composer
cvssv3.1 9.8 https://lists.debian.org/debian-lts-announce/2018/07/msg00006.html
generic_textual CRITICAL https://lists.debian.org/debian-lts-announce/2018/07/msg00006.html
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2017-18264
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2017-18264
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2017-18264
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2017-18264
cvssv3.1 9.8 https://www.phpmyadmin.net/security/PMASA-2017-8
generic_textual CRITICAL https://www.phpmyadmin.net/security/PMASA-2017-8
cvssv3.1 9.8 http://www.securityfocus.com/bid/97211
generic_textual CRITICAL http://www.securityfocus.com/bid/97211
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2017-18264
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18264
https://github.com/phpmyadmin/composer
https://lists.debian.org/debian-lts-announce/2018/07/msg00006.html
https://nvd.nist.gov/vuln/detail/CVE-2017-18264
https://www.phpmyadmin.net/security/PMASA-2017-8
https://www.phpmyadmin.net/security/PMASA-2017-8/
http://www.securityfocus.com/bid/97211
cpe:2.3:a:phpmyadmin:phpmyadmin:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:phpmyadmin:phpmyadmin:*:*:*:*:*:*:*:*
cpe:2.3:a:phpmyadmin:phpmyadmin:4.7.0:beta1:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:phpmyadmin:phpmyadmin:4.7.0:beta1:*:*:*:*:*:*
cpe:2.3:a:phpmyadmin:phpmyadmin:4.7.0:rc1:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:phpmyadmin:phpmyadmin:4.7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
GHSA-5868-g58j-vrj5 https://github.com/advisories/GHSA-5868-g58j-vrj5
USN-USN-4843-1 https://usn.ubuntu.com/USN-4843-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/phpmyadmin/composer
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://lists.debian.org/debian-lts-announce/2018/07/msg00006.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2017-18264
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2017-18264
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2017-18264
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.phpmyadmin.net/security/PMASA-2017-8
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at http://www.securityfocus.com/bid/97211
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.54462
EPSS Score 0.0032
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:41:58.098938+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/USN-4843-1/ 37.0.0