Apache CloudStack: Cross-Site Scripting (XSS) Vulnerability in Lock User Function in UI
Summary
| CVE | CVE-2026-61399 |
|---|---|
| State | PUBLISHED |
| Assigner | apache |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-21 09:16:39 UTC |
| Updated | 2026-08-21 09:16:39 UTC |
| Description | Improper Encoding or Escaping of Output vulnerability in Apache CloudStack's UI while using Lock User Functionality. This issue affects Apache CloudStack: from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue. |
Risk And Classification
EPSS: 0.001390000 probability, percentile 0.037810000 (date 2026-08-21)
Problem Types: CWE-116 | CWE-116 CWE-116 Improper Encoding or Escaping of Output
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Apache Software Foundation | Apache CloudStack | affected 4.20.0.0 4.20.3.0 semver | Not specified |
| CNA | Apache Software Foundation | Apache CloudStack | affected 4.21.0.0 4.22.1.0 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbc | [email protected] | lists.apache.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Łukasz Bawolski <[email protected]> (en)
There are currently no legacy QID mappings associated with this CVE.