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CVE Record

CVE-2020-19302: An arbitrary file upload vulnerability in the avatar upload function of vaeThink v1.0.1 allows attackers to...

An arbitrary file upload vulnerability in the avatar upload function of vaeThink v1.0.1 allows attackers to open a webshell via changing uploaded file suffixes to ".php".

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

vaeThink v1.0.1 reportedly lets attackers upload an avatar that can be treated as executable server code. If a deployed site exposes this feature, compromise could move from a profile image upload to server control. The public record does not provide CVSS scoring, patch status, or evidence of active exploitation.

Executive priority

Treat as urgent for any live vaeThink v1.0.1 deployment, especially internet-facing sites. The business risk is potential server compromise through a routine user-content feature. Priority should be lower only after confirming the product is absent, patched, or uploads cannot execute code.

Technical view

CVE-2020-19302 is an arbitrary file upload issue in vaeThink v1.0.1's avatar upload function. The CVE description says attackers can open a webshell by changing uploaded file suffixes to PHP. Authentication requirements, default exposure, affected branches, and fixed versions are not stated in the provided sources.

Likely exposure

Exposure is likely limited to organizations running vaeThink v1.0.1 with the avatar upload feature reachable. The source bundle does not identify package names, CPEs, deployment defaults, or whether other vaeThink versions are affected.

Exploitation context

CISA KEV status is false in the provided bundle, and no cited source claims active exploitation. The public GitHub issue and CVE text describe a direct upload-to-webshell risk, but do not provide reliable prevalence or exploitation telemetry.

Researcher notes

Evidence is sparse: one CVE record and one GitHub issue reference. No CVSS vector, CWE, patch link, commit, authentication context, or version range beyond vaeThink v1.0.1 is provided. Validate exposure in environment rather than extrapolating to other versions.

Mitigation direction

  • Check vaeThink vendor or maintainer guidance for a fixed release or official workaround.
  • Disable or restrict avatar uploads until remediation is confirmed.
  • Prevent execution of uploaded files in avatar and media directories.
  • Enforce server-side image validation and extension allowlisting as compensating controls.
  • Review web server rules for unsafe script handling in upload paths.

Validation and detection

  • Inventory internet-facing and internal vaeThink deployments and confirm versions.
  • Verify whether avatar upload is enabled and reachable by untrusted users.
  • Inspect upload directories for unexpected executable file types.
  • Confirm uploaded media paths cannot execute server-side scripts.
  • Review access logs for suspicious avatar upload activity.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

description · low confidence lookup

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 lookup
cve · low confidence lookup

CVE-2020-19302 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.