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Vulnerability details: VCID-4rrm-u81m-7kdt
Vulnerability ID VCID-4rrm-u81m-7kdt
Aliases CVE-2018-20028
GHSA-q99w-j4mj-7hj8
Summary Direct Request (Forced Browsing) Contao has Incorrect Access Control.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
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
CWE-284 Improper Access Control
System Score Found at
epss 0.0027 https://api.first.org/data/v1/epss?cve=CVE-2018-20028
cvssv3.1 6.5 https://contao.org/en/news/security-vulnerability-cve-2018-20028.html
generic_textual MODERATE https://contao.org/en/news/security-vulnerability-cve-2018-20028.html
cvssv3.1 6.5 https://github.com/contao/contao/commit/bbe5fe1d385cd1195670e2d6b972272133443c59
generic_textual MODERATE https://github.com/contao/contao/commit/bbe5fe1d385cd1195670e2d6b972272133443c59
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2018-20028
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2018-20028
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2018-20028
https://contao.org/en/news.html
https://contao.org/en/news/security-vulnerability-cve-2018-20028.html
https://github.com/contao/contao/commit/bbe5fe1d385cd1195670e2d6b972272133443c59
CVE-2018-20028 https://nvd.nist.gov/vuln/detail/CVE-2018-20028
GHSA-q99w-j4mj-7hj8 https://github.com/advisories/GHSA-q99w-j4mj-7hj8
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://contao.org/en/news/security-vulnerability-cve-2018-20028.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: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/contao/contao/commit/bbe5fe1d385cd1195670e2d6b972272133443c59
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:L/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-20028
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 0.5066
EPSS Score 0.0027
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:39:07.790192+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/contao/core-bundle/CVE-2018-20028.yml 38.6.0