How severe is CVE-2018-12100?

CVE-2018-12100 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-12100 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-12100?

CVE-2018-12100 affects Sonatype Nexus Repository Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-12100?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-12100 published?

CVE-2018-12100 was published on 2018-06-11 and last updated on 2026-06-17.

CVE-2018-12100

CVE-2018-12100 is a medium-severity vulnerability in Sonatype Nexus Repository Manager with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Sonatype Nexus Repository Manager
Published: 2018-06-11
Last modified: 2026-06-17

Description

Sonatype Nexus Repository Manager versions 3.x before 3.12.0 has XSS in multiple areas in the Administration UI.

Frequently asked questions

What is CVE-2018-12100?: Sonatype Nexus Repository Manager versions 3.x before 3.12.0 has XSS in multiple areas in the Administration UI.
How severe is CVE-2018-12100?: CVE-2018-12100 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-12100 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-12100?: CVE-2018-12100 affects Sonatype Nexus Repository Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-12100?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-12100 published?: CVE-2018-12100 was published on 2018-06-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:*

More vulnerabilities in Sonatype Nexus Repository Manager

CVE-2019-9629 — Critical (CVSS 9.8): Sonatype Nexus Repository Manager before 3.17.0 establishes a default administrator user with weak defaults (fixed…
CVE-2019-7238 — Critical (CVSS 9.8): Sonatype Nexus Repository Manager before 3.15.0 has Incorrect Access Control.
CVE-2017-17717 — Critical (CVSS 9.8): Sonatype Nexus Repository Manager through 2.14.5 has weak password encryption with a hardcoded CMMDwoV value in the…
CVE-2019-5475 — High (CVSS 8.8): The Nexus Yum Repository Plugin in v2 is vulnerable to Remote Code Execution when instances using…
CVE-2020-15012 — High (CVSS 8.6): A Directory Traversal issue was discovered in Sonatype Nexus Repository Manager 2.x before 2.14.19. A user that…
CVE-2020-15868 — High (CVSS 7.5): Sonatype Nexus Repository Manager OSS/Pro before 3.26.0 has Incorrect Access Control.

All CVEs affecting Sonatype Nexus Repository Manager →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →