In Shopware before 6.2.3, 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.
CVE-2020-13971
This medium-severity CVE scores 5.4 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 46% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.4
- EG Score
- 5.4(medium)
- EPSS
- 43.8%
- KEV
- Not listed
Published
July 28, 2020
Last Modified
November 21, 2024
References (4)
- cve@mitrehttps://docs.shopware.com/en/shopware-6-en/security-updates/security-update-07-2020
- cve@mitrehttps://www.shopware.com/en/changelog/#6-2-3
- af854a3a-2127-422b-91ae-364da2661108https://docs.shopware.com/en/shopware-6-en/security-updates/security-update-07-2020
- af854a3a-2127-422b-91ae-364da2661108https://www.shopware.com/en/changelog/#6-2-3
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| shopware/platform | v6.0.0+ea2 ... v6.2.2 (16 versions) | 6.2.3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 47× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:24 UTCEPSS rescore
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- 2026-07-01 14:21 UTCOSV refresh
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- 2026-05-27 00:43 UTCEG score recompute
- 2026-05-26 20:44 UTCOSV refresh
- 2026-05-26 13:42 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
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Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2020-13971?
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What is the CVSS score of CVE-2020-13971?
How do I remediate CVE-2020-13971?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-13971
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