Security readout for executives and security teams
Plain-English summary
ARTWARE CMS has an unauthenticated file upload flaw in its image upload function. A remote attacker could upload arbitrary files and potentially run code on the server. The sources do not identify specific affected versions or a named fix, so exposed ARTWARE CMS deployments should be treated as urgent until vendor guidance is confirmed.
Executive priority
Treat this as urgent for any public ARTWARE CMS deployment. The impact is full server compromise, and the available sources do not provide version boundaries that would justify deprioritizing unverified systems.
Technical view
CVE-2021-32538 is CWE-434 in ARTWARE CMS. The image upload parameter does not filter uploaded file types, allowing unauthenticated remote arbitrary file upload and possible unrestricted code execution. CVSS 3.1 is 9.8, network exploitable, low complexity, no privileges, no user interaction, with high confidentiality, integrity, and availability impact.
Likely exposure
Likely exposure is any ARTWARE CMS instance with the vulnerable image upload function reachable by untrusted users. The public sources list versions as unspecified, so teams cannot safely narrow exposure from the provided data alone.
Exploitation context
The sources support unauthenticated remote arbitrary file upload with potential code execution. The CVE is not marked KEV in the supplied bundle, and no cited source here confirms active exploitation in the wild.
Researcher notes
Evidence is limited to the CVE record and TWCERT reference. Version scope, fixed release, and exploit-in-the-wild status are not established in the supplied sources. Validate exposure defensively without attempting exploitation.
Mitigation direction
- Check ARTWARE or TWCERT guidance for fixed versions or official mitigation.
- Patch or upgrade if a vendor-supported fixed release is available.
- Restrict public access to image upload functionality where operationally possible.
- Require authentication for upload paths if supported by the product.
- Monitor upload directories and web roots for unexpected executable files.
Validation and detection
- Inventory ARTWARE CMS deployments and internet-facing upload surfaces.
- Confirm installed versions against vendor or TWCERT guidance when available.
- Review upload directories for unexpected server-executable content.
- Review web access logs for unauthenticated upload activity.
- Verify upload controls reject non-image files without exposing execution paths.
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 lookupCVE-2021-32538 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.
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:H3.95.9Primary CVE scoreVulnerability 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
Source materials
- CVE List V5 sourceCVE List V5
- https://www.twcert.org.tw/tw/cp-132-4850-9b53f-1.htmlCVE reference · x_refsource_MISC
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.