Security readout for executives and security teams
Plain-English summary
Sentrifugo 3.2 has an upload weakness in the Assets -> Add image feature. The CVE states a malicious file could be uploaded and used to control the server. This is serious where Sentrifugo is still deployed and users can access that function.
Executive priority
Treat as high priority if Sentrifugo 3.2 is present. Potential server control changes this from an application bug to a business-impacting infrastructure risk, even though exploitation evidence is incomplete.
Technical view
CVE-2020-26803 is an unrestricted file upload issue in Sentrifugo 3.2's Upload Images functionality under Assets -> Add. The public description says an attacker can upload malicious files and control the server. The bundle does not provide CVSS, CWE, affected CPEs, or a named vendor patch.
Likely exposure
Exposure is likely limited to organizations running Sentrifugo 3.2, especially instances where authenticated users can reach Assets -> Add. The source bundle does not identify other affected versions or products.
Exploitation context
The CVE source describes server control from malicious uploads, and the referenced public write-up is titled as authenticated RCE. The bundle does not include KEV status, active exploitation evidence, exploit prevalence, or confirmed patch details.
Researcher notes
Evidence is sparse: the CVE description and a single public reference support the issue, but no CVSS, CWE, CPE, patch, or exploitation status is provided. Avoid expanding scope beyond Sentrifugo 3.2 without additional vendor evidence.
Mitigation direction
- Inventory Sentrifugo deployments and identify any version 3.2 systems.
- Check vendor or project guidance for supported fixed versions or replacement paths.
- Restrict Sentrifugo access to trusted users until remediation is confirmed.
- Limit or disable the Assets -> Add upload function where operationally possible.
- Ensure uploaded content cannot execute as server-side code.
Validation and detection
- Confirm whether any internet-facing or internal Sentrifugo instance runs version 3.2.
- Review which roles can access Assets -> Add upload functionality.
- Inspect upload storage for unexpected executable or script-like files.
- Review application and web server logs for suspicious upload activity.
- Validate remediation using a non-offensive upload policy test.
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.
File 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-2020-26803 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://fatihhcelik.blogspot.com/2020/10/sentrifugo-version-32-rce-authenticated_6.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.