Cross Site Scripting vulnerability found in KiteCMS v.1.1 allows a remote attacker to…
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 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
Cross Site Scripting vulnerability found in KiteCMS v.1.1 allows a remote attacker to execute arbitrary code via the comment parameter.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00565 47th 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-20521
- 2026-10-03 Alias added: GHSA-59g6-gww9-r2p3
References
More Kitesky Kitecms vulnerabilities
- TI-2021-14795 Incorrect Access Control issue discovered in KiteCMS 1.1 allows remote attackers to view… CVSS 3.1HIGH 7.5
- TI-2020-13871 Cross Site Scripting vulnerability found in KiteCMS v.1.1 allows a remote attacker to… CVSS 3.1MEDIUM 6.1
- TI-2021-11756 Permissions vulnerability found in KiteCMS allows a remote attacker to execute arbitrary code via the upload file type. CVSS 3.1CRITICAL 9.8
- TI-2020-13905 A cross-site request forgery (CSRF) in KiteCMS V1.1 allows attackers to arbitrarily add an administrator account. CVSS 3.1HIGH 8.8
- TI-2021-02291 File Upload vulnerability found in KiteCMS v.1.1 allows a remote attacker to execute… CVSS 3.1HIGH 7.2
- TI-2020-13906 An arbitrary file upload vulnerability in /admin/upload/uploadfile of KiteCMS V1.1 allows… CVSS 3.1HIGH 7.8
Sources
- CVE-2020-20521 · CVE Program
- CVE-2020-20521 · NVD
- FIRST EPSS
- GHSA-59g6-gww9-r2p3 · GitHub Advisory Database · CC BY 4.0
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