Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2024-13981

LiveBos UploadFile.do Arbitrary File Upload

Fujian Apex Software Co. Ltd. / LiveBOS · 0 to <= pre-August 2024 builds

Severity
CVSS 10.0 · Critical
Confidence
High
Exploit status
Exploited in the wild
EPSS
0.9%
First observed
Last observed

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2024-13981 is an unauthenticated LiveBos UploadFile.do Arbitrary File Upload. LiveBOS, an object-oriented business architecture middleware suite developed by Apex Software Co., Ltd., contains an arbitrary file...

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.

Who is affected?

Fujian Apex Software Co. Ltd. / LiveBOS 0 to <= pre-august 2024 builds.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

LiveBos UploadFile.do Arbitrary File Upload

LiveBOS, an object-oriented business architecture middleware suite developed by Apex Software Co., Ltd., contains an arbitrary file upload vulnerability in its UploadFile.do;.js.jsp endpoint. This flaw affects the LiveBOS Server component and allows unauthenticated remote attackers to upload crafted files outside the intended directory structure via path traversal in the filename parameter.

Successful exploitation may lead to remote code execution on the server, enabling full system compromise. The vulnerability is presumed to affect builds released prior to August 2024 and is said to be remediated in newer versions of the product, though the exact affected range remains undefined. Exploitation evidence was first observed by the Shadowserver Foundation on 2024-08-23 UTC.

Vendor Product Affected Status
Fujian Apex Software Co. Ltd. LiveBOS Through pre-August 2024 builds Affected
View vendor advisory (opens in new tab)
Published
27 Aug 2025
Exploitation Reported
27 Aug 2025
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

CVE References

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

The Shadowserver

Recorded 27 Aug 2025

Independent exploitation attestation added to the KEV Intelligence record.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

Learn about Pro API access
Source Added
The Shadowserver First 2025-08-27 21:25 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
0
User-Agents
0

Raw values available in Pro and Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v4.0

10.0 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

EPSS

0.9%

Timeline

From disclosure to observed exploitation

  1. CVE published

    Vulnerability disclosed publicly

  2. Added to KEV Intelligence KEV Feed

    High-confidence, third-party attested exploitation

  3. CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

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

  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2024-13981

Free JSON includes basic KEV fields
{
  "cve_id": "CVE-2024-13981",
  "confidence": "High",
  "cvss_score": 10.0,
  "cvss_estimated": false,
  "epss_score": 0.00904,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

Early warning alerts

Get alerts on high-impact exploitation

Receive curator-selected alerts when exploitation activity warrants attention. Each alert includes the evidence and context needed to decide what requires attention now.

Occasional high-impact alerts. Unsubscribe anytime. See our Privacy Policy.