Cross Site Scripting (XSS) vulnerability in HongCMS 3.0 allows attackers to run arbitrary…
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 (XSS) vulnerability in HongCMS 3.0 allows attackers to run arbitrary code via the callback parameter to /ajax/myshop.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00406 35th 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
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hongcms_project:hongcms:3.0.0:*:*:*:*:*:*:* | 3.0.0 | Vulnerable | Hongcms Project |
- cpe:2.3:a:hongcms_project:hongcms:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Hongcms Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-21643
- 2026-10-03 Alias added: GHSA-rgcf-fv23-mh6f
References
More Hongcms Project Hongcms vulnerabilities
- TI-2020-14023 Cross Site Request Forgery vulnerability in Neeke HongCMS 3.0.0 allows a remote attacker… CVSS 3.1HIGH 8.8
- TI-2020-13340 Path Traversal in HongCMS v4.0.0 allows remote attackers to view, edit, and delete… CVSS 3.1CRITICAL 9.8
- TI-2018-07283 An issue was discovered in HongCMS v3.0.0. CVSS 3.0HIGH 8.8
- TI-2022-11213 HongCMS 3.0.0 allows arbitrary file deletion via the component /admin/index.php/template/ajax?action=delete. CVSS 3.1HIGH 8.1
- TI-2018-12011 HongCMS 3.0.0 allows arbitrary file deletion via a ../ in the file parameter to… CVSS 3.0HIGH 7.5
- TI-2018-09344 An issue was discovered in HongCMS 3.0.0. CVSS 3.0HIGH 7.2
Sources
- CVE-2020-21643 · CVE Program
- CVE-2020-21643 · NVD
- FIRST EPSS
- GHSA-rgcf-fv23-mh6f · GitHub Advisory Database · CC BY 4.0
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