Security readout for executives and security teams
Plain-English summary
CVE-2025-52239 is a critical arbitrary file upload issue reported in ZKEACMS v4.1. A remote attacker could upload a crafted file and achieve arbitrary code execution. This can lead to full compromise of the web application and its host environment. Public sources do not name a patch or workaround.
Executive priority
Treat as urgent for any public ZKEACMS v4.1 system. The potential impact is full system compromise, but remediation specifics are not yet clear from the provided sources. Prioritize asset discovery, exposure reduction, and vendor guidance review.
Technical view
The CVE describes CWE-434 in ZKEACMS v4.1: unrestricted upload of a dangerous file type enabling arbitrary code execution. CVSS 3.1 is 9.8 with network access, low complexity, no privileges, and no user interaction. The CVE record’s structured affected fields are incomplete, so scope beyond v4.1 is not established.
Likely exposure
Internet-facing ZKEACMS v4.1 deployments are the primary concern. Exposure depends on whether file upload functionality is reachable by unauthenticated users. The source data does not provide CPEs, affected vendor metadata, or fixed versions.
Exploitation context
The CVE is not listed as KEV in the provided data. No cited source confirms active exploitation. The CVSS vector indicates exploitation could be remote and unauthenticated if the vulnerable upload path is exposed.
Researcher notes
Evidence is sparse. The CVE description and CVSS indicate critical unauthenticated RCE via file upload, but affected metadata is incomplete and no fixed release is listed. Avoid assuming impact to versions other than ZKEACMS v4.1 without additional vendor confirmation.
Mitigation direction
- Identify any ZKEACMS v4.1 instances, especially public-facing deployments.
- Check ZKEACMS maintainer or project guidance for patched versions or official mitigations.
- Restrict access to upload functionality until vendor guidance is confirmed.
- Review uploaded files and web directories for suspicious executable content.
- Apply least privilege to the web application service account.
Validation and detection
- Confirm product name and version for all CMS instances.
- Determine whether unauthenticated users can access upload features.
- Review server logs for unusual upload activity or unexpected file execution.
- Inspect upload directories for recently added suspicious files.
- Track the CVE record and referenced advisory for 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-2025-52239 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://github.com/CTRLCCT/BoolSpideer/blob/main/cve2.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.