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Vulnerability details: VCID-uamr-mmjj-ryhc
Vulnerability ID VCID-uamr-mmjj-ryhc
Aliases CVE-2020-19626
GHSA-33jj-92px-m4g7
Summary Cross-site Scripting Cross Site Scripting (XSS) vulnerability in craftcms, allows remote attackers to inject arbitrary web script or HTML, via `/admin/settings/sites/new.`
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-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00226 https://api.first.org/data/v1/epss?cve=CVE-2020-19626
epss 0.00226 https://api.first.org/data/v1/epss?cve=CVE-2020-19626
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-33jj-92px-m4g7
cvssv3.1 5.4 https://github.com/craftcms/cms/commit/76a2168b6a5e30144f5c06da4ff264f4eca577ff
generic_textual MODERATE https://github.com/craftcms/cms/commit/76a2168b6a5e30144f5c06da4ff264f4eca577ff
cvssv3.1 5.4 https://nvd.nist.gov/vuln/detail/CVE-2020-19626
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2020-19626
cvssv3.1 5.4 https://web.archive.org/web/20211209121705/http://mayoterry.com/file/cve/XSS_vuluerability_in_Craftcms_3.1.31.pdf
generic_textual MODERATE https://web.archive.org/web/20211209121705/http://mayoterry.com/file/cve/XSS_vuluerability_in_Craftcms_3.1.31.pdf
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-19626
https://github.com/craftcms/cms/commit/76a2168b6a5e30144f5c06da4ff264f4eca577ff
https://web.archive.org/web/20211209121705/http://mayoterry.com/file/cve/XSS_vuluerability_in_Craftcms_3.1.31.pdf
CVE-2020-19626 https://nvd.nist.gov/vuln/detail/CVE-2020-19626
GHSA-33jj-92px-m4g7 https://github.com/advisories/GHSA-33jj-92px-m4g7
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/craftcms/cms/commit/76a2168b6a5e30144f5c06da4ff264f4eca577ff
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:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-19626
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:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Found at https://web.archive.org/web/20211209121705/http://mayoterry.com/file/cve/XSS_vuluerability_in_Craftcms_3.1.31.pdf
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 0.454
EPSS Score 0.00226
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:20:57.226936+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/craftcms/cms/CVE-2020-19626.yml 38.6.0