HIGH
CVE-2018-13021
CWE-434Published: June 29, 2018· Updated: Jun 17, 2026
7.2
CVSS v3.1
Official Description
An issue was discovered in HongCMS 3.0.0. There is an Arbitrary Script File Upload issue that can result in PHP code execution via the admin/index.php/template/upload URI.
Technical Analysis
CVE-2018-13021 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
hongcms_project1 product(s)
hongcms
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://github.com/Neeke/HongCMS/issues/5Exploit · Third Party Advisory
→
https://github.com/Neeke/HongCMS/issues/5Exploit · Third Party Advisory
Quick Facts
CVE IDCVE-2018-13021
CVSS Score7.2 / 10
SeverityHIGH
WeaknessCWE-434
CISA KEVNo
Affected1 vendor(s)
PublishedJun 29, 2018
Related CVEs (CWE-434)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2018-13021 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.