CVE-2021-39166
Improper Neutralization of Text-Values in Object Version Preview
Pimcore is an open source data & experience management platform. Prior to version 10.1.2, text-values were not properly escaped before printed in the version preview. This allowed XSS by authenticated users with access to the resources. This issue is patched in Pimcore version 10.1.2.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Improper Neutralization of Text-Values in Object Version Preview
Pimcore is an open source data & experience management platform. Prior to version 10.1.2, text-values were not properly escaped before printed in the version preview. This allowed XSS by authenticated users with access to the resources. This issue is patched in Pimcore version 10.1.2.
- Record
CVE-2021-39166- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-2123
Pimcore is an open source data & experience management platform. Prior to version 10.1.2, text-values were not properly escaped before printed in the version preview. This allowed XSS by authenticated users with access to the resources. This issue is patched in Pimcore version 10.1.2.
- Record
EUVD-2021-2123- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w6j8-jc36-x5q9
Improper Neutralization of Text-Values in Object Version Preview
Text-values were not properly escaped before printed in the version preview. This allowed XSS by authenticated users with access to the resources.
- Record
GHSA-w6j8-jc36-x5q9- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
Pimcore is an open source data & experience management platform. Prior to version 10.1.2, text-values were not properly escaped before printed in the version preview. This allowed XSS by authenticated users with access to the resources. This issue is patched in Pimcore version 10.1.2.
- Record
CVE-2021-39166- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Pimcore is an open source data & experience management platform. Prior to version 10.1.2, text-values were not properly escaped before printed in the version preview. This allowed XSS by authenticated users with access to the resources. This issue is patched in Pimcore version 10.1.2.
- Record
CVE-2021-39166- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-w6j8-jc36-x5q9
Improper Neutralization of Text-Values in Object Version Preview
Text-values were not properly escaped before printed in the version preview. This allowed XSS by authenticated users with access to the resources.
- Record
GHSA-w6j8-jc36-x5q9- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
pimcore/pimcorePackagist | before 10.1.1 | 10.1.1 |
pimcore/pimcorePackagist | before 10.1.2, plus listed versions 10.0.82.2.02.2.12.2.22.3.0 Show 45 moreShow less3.0.03.0.13.0.23.0.33.0.43.0.53.0.63.1.03.1.14.0.04.0.14.1.04.1.14.1.24.1.34.2.04.3.04.3.14.4.04.4.14.4.24.4.34.5.04.6.04.6.14.6.24.6.34.6.44.6.5v10.0.0v10.0.0-BETA1v10.0.0-BETA2v10.0.0-BETA3v10.0.0-BETA4v10.0.1v10.0.2v10.0.3v10.0.4v10.0.5v10.0.6v10.0.7v10.0.9v10.1.0v10.1.1v5.0.0 | 10.1.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-39166 is a high vulnerability (CVSS 8.0) in Pimcore, published September 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.78%, the 56th percentile. Fixed in pimcore/pimcore 10.1.1.
References
Left out here: 110 versions. The JSON record has them.