A Cross Site Scripting (XSS) vulnerability exists in Nacos 2.0.3 in auth/users via the…
Priority LOW 29CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
A Cross Site Scripting (XSS) vulnerability exists in Nacos 2.0.3 in auth/users via the (1) pageSize and (2) pageNo parameters.
Why it matters now
EPSS 0.00831 57th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed com.alibaba.nacos:nacos-common (Maven): 2.1.0-BETA, 1.4.5
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | com.alibaba.nacos:nacos-common (Maven) | 2.0.0-ALPHA.1 to before 2.1.0-BETA | 2.1.0-BETA | Patch available | GHSA-4gr7-qw2q-jxh6 |
| — | com.alibaba.nacos:nacos-common (Maven) | before 1.4.5 | 1.4.5 | Patch available | GHSA-4gr7-qw2q-jxh6 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- com.alibaba.nacos:nacos-common (Maven) Vendor— Affected 2.0.0-ALPHA.1 to before 2.1.0-BETA Fixed in 2.1.0-BETA Patch available GHSA-4gr7-qw2q-jxh6
- com.alibaba.nacos:nacos-common (Maven) Vendor— Affected before 1.4.5 Fixed in 1.4.5 Patch available GHSA-4gr7-qw2q-jxh6
Remediation
- Fix · GHSA-4gr7-qw2q-jxh6 com.alibaba.nacos:nacos-common (Maven) Fixed in 2.1.0-BETA Advisory →
- Fix · GHSA-4gr7-qw2q-jxh6 com.alibaba.nacos:nacos-common (Maven) Fixed in 1.4.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-44667
- 2026-10-03 Alias added: GHSA-4gr7-qw2q-jxh6
References
More Alibaba Nacos vulnerabilities
- TI-2021-10154 Authentication bypass in Alibaba nacos CVSS 3.1CRITICAL 9.8
- TI-2021-10155 Authentication bypass in Alibaba nacos CVSS 3.1HIGH 8.6
- TI-2021-19162 An Access Control vulnerability exists in Nacos 2.0.3 in the access prompt page; enter… CVSS 3.1HIGH 8.8
- TI-2020-13672 Nacos 1.1.4 is affected by: Incorrect Access Control. CVSS 3.1MEDIUM 5.3
Sources
- CVE-2021-44667 · CVE Program
- CVE-2021-44667 · NVD
- FIRST EPSS
- GHSA-4gr7-qw2q-jxh6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences