Security readout for executives and security teams
Plain-English summary
CVE-2023-46474 is a high-severity file upload flaw reported in PMB v7.4.8. An attacker with high privileges could upload a crafted PHP file through start_import.php, potentially leading to code execution and privilege escalation. Public sources do not identify a fixed version or vendor mitigation.
Executive priority
Prioritize this for environments running PMB v7.4.8, especially internet-reachable or broadly administered systems. The main business risk is full compromise of confidentiality, integrity, and availability after authenticated abuse. If PMB is not present, exposure is unlikely.
Technical view
The issue is classified as CWE-434: unrestricted upload of a dangerous file type. The CVSS 3.1 vector is AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H, scoring 7.2. The vulnerability centers on start_import.php accepting a crafted PHP upload in PMB v7.4.8.
Likely exposure
Exposure appears limited to PMB v7.4.8 deployments where authenticated high-privilege users can reach the import upload path. The CVE record’s affected vendor/product fields are listed as n/a, so product scoping should be verified against local inventories and vendor information.
Exploitation context
The source bundle references a public GitHub entry, but it does not provide evidence of active exploitation. The CVE is not listed as CISA KEV in the provided data. Treat public proof-of-concept visibility as a reason to prioritize validation without assuming observed exploitation.
Researcher notes
The public record gives a clear weakness class, endpoint, affected version, and CVSS vector, but weak affected-product metadata and no named fix. Do not broaden scope beyond PMB v7.4.8 without vendor confirmation. Validate defensively; avoid reproducing upload behavior in production.
Mitigation direction
- Identify any PMB v7.4.8 deployments in production or internal environments.
- Check PMB vendor guidance for a fixed release or official mitigation.
- Restrict administrative and import functionality to trusted users and networks.
- Review upload handling to prevent executable server-side files from running.
- Monitor for suspicious access to start_import.php and unexpected PHP files.
Validation and detection
- Confirm whether PMB v7.4.8 is installed anywhere in scope.
- Verify who can access start_import.php and related import features.
- Review web server logs for unusual import activity or PHP uploads.
- Inspect upload directories for unexpected executable files.
- Document whether an official patch or workaround is available.
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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program 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-2023-46474 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
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/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:H/UI:N/S:U/C:H/I:H/A:H1.25.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/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://github.com/Xn2/CVE-2023-46474CVE 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.
CWE mapping pending import
This CVE carries a CWE mapping that will resolve to a full Glexia CWE intelligence page after the official CWE import is complete.