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Vulnerability details: VCID-hymt-whub-abag
Vulnerability ID VCID-hymt-whub-abag
Aliases CVE-2020-13971
GHSA-fxf3-wx3c-76pf
Summary Cross-site Scripting In Shopware, authenticated users are allowed to use the Mediabrowser fileupload feature to upload SVG images containing JavaScript. This leads to Persistent XSS. An uploaded image can be accessed without authentication.
Status Published
Exploitability None
Weighted Severity None
Risk None
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 0.00307 https://api.first.org/data/v1/epss?cve=CVE-2020-13971
cvssv3.1 5.4 https://docs.shopware.com/en/shopware-6-en/security-updates/security-update-07-2020
generic_textual MODERATE https://docs.shopware.com/en/shopware-6-en/security-updates/security-update-07-2020
cvssv3.1 5.4 https://github.com/shopware/platform
generic_textual MODERATE https://github.com/shopware/platform
cvssv3.1 5.4 https://nvd.nist.gov/vuln/detail/CVE-2020-13971
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2020-13971
cvssv3.1 5.4 https://www.shopware.com/en/changelog/#6-2-3
generic_textual MODERATE https://www.shopware.com/en/changelog/#6-2-3
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-13971
https://docs.shopware.com/en/shopware-6-en/security-updates/security-update-07-2020
https://github.com/shopware/platform
https://www.shopware.com/en/changelog/#6-2-3
CVE-2020-13971 https://nvd.nist.gov/vuln/detail/CVE-2020-13971
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://docs.shopware.com/en/shopware-6-en/security-updates/security-update-07-2020
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://github.com/shopware/platform
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-2020-13971
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://www.shopware.com/en/changelog/#6-2-3
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 0.5421
EPSS Score 0.00307
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:20:08.749865+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/shopware/platform/CVE-2020-13971.yml 38.6.0