CVE-2020-10203

Persistent Cross-Site scripting in Nexus Repository Manager

4.8 MediumFix available

Sonatype Nexus Repository before 3.21.2 allows XSS.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.92%Up 0.5 points since Apr 14, 2021

What each source reports

NVD Score used 4.8

Sonatype Nexus Repository before 3.21.2 allows XSS.

Record: CVE-2020-10203
CVSS 3.1: 4.8 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 3.5 LowAV:N/AC:M/Au:S/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Sonatype Nexus Repository before 3.21.2 allows XSS.

Record: CVE-2020-10203
Updated: 2026-11-02

EUVDEUVD-2020-0359 No score

Sonatype Nexus Repository before 3.21.2 allows XSS.

Record: EUVD-2020-0359
Updated: 2026-11-03

GitHub AdvisoriesGHSA-3944-787c-f852 4.8

Persistent Cross-Site scripting in Nexus Repository Manager

Sonatype Nexus Repository before 3.21.2 allows XSS.

Record: GHSA-3944-787c-f852
CVSS 3.1: 4.8 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSVGHSA-3944-787c-f852 4.8

Persistent Cross-Site scripting in Nexus Repository Manager

Sonatype Nexus Repository before 3.21.2 allows XSS.

Record: GHSA-3944-787c-f852
CVSS 3.1: 4.8 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

sonatype nexus

Affected packages

Affected packages
Package	Affected	Fixed
`org.sonatype.nexus:nexus-core` Maven	before 3.21.2	3.21.2
`org.sonatype.nexus:nexus-core` Maven	before 3.21.2, plus listed versions 2.10.0-012.10.0-022.11.0-012.11.0-022.11.1-01 Show 45 moreShow less 2.11.2-012.11.2-032.11.2-042.11.2-062.11.3-012.11.4-012.12.0-012.12.1-012.13.0-012.14.0-012.14.1-012.14.10-012.14.11-012.14.12-022.14.13-012.14.14-012.14.15-012.14.16-012.14.17-012.14.18-012.14.19-012.14.2-012.14.20-012.14.20-022.14.21-022.14.3-022.14.4-012.14.4-032.14.5-022.14.6-022.14.7-012.14.8-012.14.9-012.15.0-042.15.1-022.15.2-032.16.0-012.4.0-032.4.0-042.4.0-052.4.0-062.4.0-072.4.0-082.4.0-092.4.0-1	3.21.2

History

History
Recorded	Changed	Sources
Nov 10, 2026	facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-10203 is a medium vulnerability (CVSS 4.8) in Sonatype Nexus, published April 1, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.92%, the 60th percentile. Fixed in org.sonatype.nexus:nexus-core 3.21.2.

References

This page doesn't list everything

Left out here: 90 versions. The JSON record has them.