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Vulnerability record · CVE-2021-4139 · published 21 December 2021

CVE-2021-4139: Pimcore cross-site scripting vulnerability

Pimcore · Pimcore

pimcore is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

9.0 CVSS 3.1 Critical EPSS 0.88% · top 42.6% CWE-79 · Cross-site scripting
9.0CVSS 3.1 base score, v2 6.0
0.88%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

pimcore is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/pimcore/pimcore/commit/d5c3e876d910784000335061c3bd24d301351245 PatchThird Party Advisory
https://huntr.dev/bounties/6ec59e43-095f-4ba3-8b75-e92250da8e3a ExploitThird Party Advisory
https://github.com/pimcore/pimcore/commit/d5c3e876d910784000335061c3bd24d301351245 PatchThird Party Advisory
https://huntr.dev/bounties/6ec59e43-095f-4ba3-8b75-e92250da8e3a ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-4139), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.