Cockpit vulnerable to Cross-site Scripting
Priority MEDIUM 60CWE-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
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Cockpit is a content management system that allows addition of content management functionality to any site. In versions 0.12.2 and prior, bad HTML sanitization in `htmleditor.js` may lead to cross-site scripting (XSS) issues. There are no known patches for this issue.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00709 53rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| microweber | microweber | 0.12.2 – 0.12.2 | — | No fix listed | CNA |
- microweber Vendormicroweber Affected 0.12.2 – 0.12.2 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:agentejo:cockpit:*:*:*:*:*:*:*:* | up to 0.12.2 | Vulnerable | cockpit-hq |
- cpe:2.3:a:agentejo:cockpit:*:*:*:*:*:*:*:* Versions up to 0.12.2 Vulnerable ·cockpit-hq
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-32857
- 2026-10-03 Alias added: GHSA-8c8x-phvc-5p9w
References
More microweber vulnerabilities
- TI-2026-46828 Microweber CMS 2.0.20 Path Traversal via ServeStaticFileController CVSS 4.0HIGH 8.7
- TI-2023-01763 Command Injection in microweber/microweber CVSS 3.1CRITICAL 9.8
- TI-2023-02100 Improper Privilege Management in microweber/microweber CVSS 3.1HIGH 8.8
- TI-2022-14518 Microweber v1.2.15 was discovered to allow attackers to perform an account takeover via a host header injection attack. CVSS 3.1HIGH 8.8
- TI-2026-46827 Microweber CMS 2.0.20 Server-Side Template Injection via Mail Templates CVSS 4.0HIGH 8.6
- TI-2023-04891 Use of Hard-coded Credentials in microweber/microweber CVSS 3.1HIGH 7.5
Sources
- CVE-2021-32857 · CVE Program
- CVE-2021-32857 · NVD
- FIRST EPSS
- GHSA-8c8x-phvc-5p9w · 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