🛡️ CVE-2021-39170 — pimcore

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-116 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Improper Encoding or Escaping of Output in Asset Metadata Component

Pimcore is an open source data & experience management platform. Prior to version 10.1.2, an authenticated user could add XSS code as a value of custom metadata on assets. There is a patch for this issue in Pimcore version 10.1.2. As a workaround, users may apply the patch manually.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2021-39170 is classified as CWE-116: Improper Encoding or Escaping of Output. Output is emitted without encoding it for the context it lands in, so data is interpreted as markup or code.

Affected software

CVE-2021-39170 is recorded against 1 package.

  • pimcore/pimcore (fixed in 10.1.2)

Timeline and source

Published on 1 September 2021 and last revised on 8 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Package)
huntr.dev (Web)
huntr.dev (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CWE CWE-116
Public Exploit ✅ No
Source OSV
Published 2021-09-01
Updated 2026-08-12
Modified 2026-07-08
Fix URL N/A

Affected Packages

Software From version Fixed in
pimcore/pimcore — 10.1.2

Similar Threats

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