Security readout for executives and security teams
Plain-English summary
CRMEB versions 4.4 through 4.6 reportedly allow arbitrary file uploads in an attachment service component. Because the CVSS vector is unauthenticated, remote, and high impact, a vulnerable internet-facing CRMEB site could face full confidentiality, integrity, and availability impact.
Executive priority
Treat this as an urgent internet-exposure issue for any CRMEB 4.4 to 4.6 deployment. Prioritize inventory, access reduction, and vendor-confirmed remediation. The source bundle does not provide a named patch, so do not assume normal patch status without checking CRMEB guidance.
Technical view
CVE-2023-30185 is a CWE-434 arbitrary file upload issue in CRMEB v4.4 to v4.6, attributed to \attachment\SystemAttachmentServices.php. The published CVSS 3.1 score is 9.8 with network access, low complexity, no privileges, and no user interaction required.
Likely exposure
Exposure is most likely on CRMEB deployments running v4.4, v4.5, or v4.6 with reachable attachment or upload functionality. Formal affected-product metadata is incomplete in the source bundle, so teams should verify directly against their installed CRMEB version and vendor records.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. A public GitHub reference exists, but this analysis does not rely on or repeat exploit procedure. Risk remains high because arbitrary upload flaws can enable server compromise when uploaded content is processed unsafely.
Researcher notes
The CVE record provides severity, weakness class, affected version range in the description, and component path, but affected CPE metadata is absent. Avoid overstating exploit prevalence: KEV is false and no active exploitation evidence is included. Validate exposure through version checks and upload-surface review.
Mitigation direction
- Identify CRMEB deployments and confirm whether versions 4.4 through 4.6 are present.
- Check CRMEB vendor guidance for patched versions or supported remediation steps.
- Restrict public access to upload and attachment endpoints where operationally feasible.
- Enforce strict file type, extension, storage, and execution controls on uploads.
- Review uploaded files and remove unexpected executable or script-like content.
Validation and detection
- Inventory CRMEB instances and record exact application versions.
- Confirm whether \attachment\SystemAttachmentServices.php exists in deployed code.
- Review web server and application logs for suspicious upload activity.
- Inspect upload directories for unexpected executable files or recently added scripts.
- Verify any vendor-recommended patch or configuration change in staging first.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-30185 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.crmeb.com/CVE reference, mitre
- https://github.com/c7w1n/CVE-2023-30185/blob/main/CVE-2023-30185.mdCVE reference, mitre
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Unrestricted Upload of File with Dangerous Type
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.