CVE-2025-34046

High PUBLISHED

Fanwei E-Office Unauthenticated File Upload

Shanghai Fanwei Network Technology · E-Office

Not yet in CISA KEV

Exploited in the wild

Recommended Action

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Confidence

High

Exploitation Status

Exploited in the wild

Observed in Sensors

Attempts (30d)

—

Unique Attacker IPs

—

CISA KEV

Not yet in CISA KEV

CVSS / EPSS

10.0 Critical

At a Glance

An unauthenticated file upload vulnerability exists in the Fanwei E-Office <= v9.4 web management interface. The vulnerability affects the /general/index/UploadFile.php endpoint, which improperly validates uploaded files when invoked with certain parameters (uploadType=eoffice_logo or uploadType=theme). An attacker can exploit this flaw by sending a crafted HTTP POST request to upload arbitrary files without requiring authentication. Successful exploitation could enable remote code execution on the affected server, leading to complete compromise of the web application and potentially the underlying system. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-05 UTC.

CVE Published: Jun 26, 2025
Exploitation Reported: Jan 30, 2026
CVSS: 10.0 Critical
EPSS: —

Remote Low complexity No user interaction Unauthenticated

Affected Versions

Vendor	Product	Version	Status
Shanghai Fanwei Network Technology	E-Office	0 to <= 9.4	Affected

CVE References

Third-Party Advisory — cnvd.org.cn cnvd.org.cn · Third-Party Advisory https://www.cnvd.org.cn/flaw/show/CNVD-2021-49104
Third-Party Advisory — vulncheck.com vulncheck.com · Third-Party Advisory https://vulncheck.com/advisories/fanwei-eoffice-file-upload
GitHub — M0ge/CNVD-2021-49104-Fanwei-Eoffice-fileupload github.com · Exploit https://github.com/M0ge/CNVD-2021-49104-Fanwei-Eoffice-fileupload/blo...
GitHub — projectdiscovery/nuclei-templates github.com · Exploit https://github.com/projectdiscovery/nuclei-templates/blob/main/http/c...

Recommended Actions

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Known Exploited Vulnerability Sources

Catalogues that list this CVE as a known exploited vulnerability.

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Source	Added
The Shadowserver First	2026-01-30 00:00 UTC

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Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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Pro API Example

GET /api/v2/pro/kevs/CVE-2025-34046

{
  "cve_id": "CVE-2025-34046",
  "title": "Fanwei E-Office Unauthenticated File Upload",
  "affected_vendor": "Shanghai Fanwei Network Technology",
  "affected_product": "E-Office",
  "affected_versions": [
    { "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
  ],
  "confidence": "High",
  "cvss_score": 10.0,
  "epss_score": null,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "...": "Pro API fields" },
  "proof_of_concepts": [ "..." ],
  "scanner_integrations": [ "..." ]
}

The free JSON API returns basic KEV fields only. Confidence, telemetry, and artifact enrichment require Pro API access.

CVE-2025-34046

At a Glance

Affected Versions

CVE References

Recommended Actions

Known Exploited Vulnerability Sources

Virtual Patch

CVSS Scores

Exploitation Status

Weaknesses (CWE)

Timeline

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