XSS in Alibaba Nacos

CVE-2021-44667

A Cross Site Scripting (XSS) vulnerability exists in Nacos 2.0.3 in auth/users via the (1) pageSize and (2) pageNo parameters.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (53.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Alibaba Nacos — versions 2.0.3
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-44667?: CVE-2021-44667 is a medium-severity vulnerability in Alibaba Nacos, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-03-11.
How severe is CVE-2021-44667?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2021-44667 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.