What is CVE-2020-29436?

CVE-2020-29436 is a medium-severity vulnerability in Sonatype Nexus Repository Manager, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2020-12-17.

How severe is CVE-2020-29436?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2020-29436 known to be exploited?

7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XXE in Sonatype Nexus Repository Manager

CVE-2020-29436

Sonatype Nexus Repository Manager 3.x before 3.29.0 allows a user with admin privileges to configure the system to gain access to content outside of NXRM via an XXE vulnerability. Fixed in version 3.29.0.

Vulnerability class: XXE (XML External Entity)

EPSS: 0.014 (70.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.

Affected products

Sonatype Nexus_repository_manager
N/a — versions n/a

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2020-29436?: CVE-2020-29436 is a medium-severity vulnerability in Sonatype Nexus Repository Manager, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2020-12-17.
How severe is CVE-2020-29436?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2020-29436 known to be exploited?: 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.