MEDIUM
CVE-2021-43961
CWE-79Published: March 17, 2022· Updated: Jun 17, 2026
4.3
CVSS v3.1
Official Description
Sonatype Nexus Repository Manager 3.36.0 allows HTML Injection.
Technical Analysis
CVE-2021-43961 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Affected Vendors & Products
sonatype1 product(s)
nexus repository manager
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (4)
→
https://issues.sonatype.org/secure/ReleaseNote.jspaRelease Notes · Vendor Advisory
→
https://support.sonatype.com/hc/en-us/articles/4412183372307Vendor Advisory
→
https://issues.sonatype.org/secure/ReleaseNote.jspaRelease Notes · Vendor Advisory
→
https://support.sonatype.com/hc/en-us/articles/4412183372307Vendor Advisory
Quick Facts
CVE IDCVE-2021-43961
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-79
CISA KEVNo
Affected1 vendor(s)
PublishedMar 17, 2022
Related CVEs (CWE-79)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-43961 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.