Security readout for executives and security teams
Plain-English summary
CVE-2023-50897 affects the WordPress Media File Renamer plugin through version 5.7.7. Public records describe a file-handling flaw that can allow dangerous file types and potentially lead to remote code execution. The CVSS score is critical, but the published vector indicates the attacker needs high privileges.
Executive priority
Treat this as urgent for WordPress environments using the affected plugin. Prioritize inventory and remediation planning, but avoid assuming broad internet exploitation without supporting evidence. The main business risk is compromise of a WordPress site by someone with high-level access.
Technical view
The issue is mapped to CWE-434, unrestricted upload of a file with a dangerous type. Patchstack describes arbitrary file rename leading to RCE in Meow Apps Media File Renamer <=5.7.7. CVSS 3.1 is 9.1 with network access, low complexity, high privileges, no user interaction, and changed scope.
Likely exposure
Exposure is likely limited to WordPress sites running the Media File Renamer plugin through version 5.7.7, especially where many users have high-privilege WordPress access. Sites without this plugin are not indicated as affected by the provided sources.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability is still serious because successful exploitation could affect confidentiality, integrity, and availability. High privileges are required according to the CVSS vector.
Researcher notes
Public detail is limited. The record names CWE-434 and Patchstack characterizes the bug as arbitrary file rename leading to RCE. No exploit details, fixed version, or active exploitation evidence are provided in the supplied sources. Validate against vendor advisories before making final remediation decisions.
Mitigation direction
- Identify WordPress sites using Media File Renamer.
- Check whether the installed plugin version is 5.7.7 or earlier.
- Review Meow Apps or Patchstack guidance for fixed versions or vendor instructions.
- Restrict high-privilege WordPress accounts to trusted administrators only.
- Remove or disable the plugin if risk is unacceptable and no fix is available.
Validation and detection
- Inventory WordPress plugins across production and staging sites.
- Confirm the exact Media File Renamer version installed.
- Review administrative user access and recent privilege changes.
- Check media directories for unexpected renamed files or dangerous file types.
- Monitor vendor, CVE, and Patchstack pages for remediation updates.
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-2023-50897 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
- 9.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/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.
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:C/C:H/I:H/A:H2.36Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source materials
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.