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CVE-2018-18830· NVD / CVE Program· CNA mitre

An issue was discovered in com\mingsoft\basic\action\web\FileAction.java in MCMS 4.6.5.

An issue was discovered in com\mingsoft\basic\action\web\FileAction.java in MCMS 4.6.5. Since the upload interface does not verify the user login status, you can use this interface to upload files without setting a cookie. First, start an upload of JSP code with a .png filename, and then intercept the data packet. In the name parameter, change the suffix to jsp. In the response, the server returns the storage path of the file, which can be accessed to execute arbitrary JSP code.

CriticalCVSS 9.8 · v3.0—No exploit No fix recorded
Published
Oct 30, 2018
Updated
Jun 16, 2026
EPSS
1.2% · 67th percentile
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Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.2%

Affected systems

VendorProduct
mingsoftmcms

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • mingsoft mcms4.6.5

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Mavennet.mingsoft:ms-mcmsup to and including 4.6.5—

Same product

mingsoft: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-22930A remote code execution (RCE) vulnerability in the Template Management function of MCMS v5.2.4 allows attackers to execute arbitrary code vi
    46Plan
  • CVE-2022-26585Mingsoft MCMS v5.2.7 was discovered to contain a SQL injection vulnerability via /cms/content/list.
    41Plan
  • CVE-2022-25125MCMS v5.2.4 was discovered to contain a SQL injection vulnerability via search.do in the file /mdiy/dict/listExcludeApp.
    41Plan
  • CVE-2022-23898MCMS v5.2.5 was discovered to contain a SQL injection vulnerability via the categoryId parameter in the file IContentDao.xml.
    41Plan
  • CVE-2024-22567File Upload vulnerability in MCMS 5.3.5 allows attackers to upload arbitrary files via crafted POST request to /ms/file/upload.do.
    40Plan
  • CVE-2023-50578Mingsoft MCMS v5.2.9 was discovered to contain a SQL injection vulnerability via the categoryType parameter at /content/list.do.
    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-434 · Unrestricted Upload of File with Dangerous Type

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records