CVE-2024-13971Public exploitNetwork attack vector

Unauthenticated file read and SSRF via XXE

Published Apr 30, 2026 · Updated Apr 30, 2026

XML external entity injection in Lobster DATA GmbH Lobster_pro before 4.12.6-GA allows remote attackers to read server files. The unauthenticated /system/web endpoint parses POSTed XML while resolving external entities and returns resolved file or directory content in error responses. Network access to HTTPS port 443 is sufficient to trigger server-side HTTP requests, reach adjacent SMB shares, and expose the service account's NTLM hash.

CVSS severity7.7
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XML external entity injection in Lobster DATA GmbH Lobster_pro before 4.12.6-GA allows remote attackers to read server files. The unauthenticated /system/web endpoint parses POSTed XML while resolving external entities and returns resolved file or directory content in error responses. Network access to HTTPS port 443 is sufficient to trigger server-side HTTP requests, reach adjacent SMB shares, and expose the service account's NTLM hash.

The record

CVE
CVE-2024-13971
Published
Apr 30, 2026
Updated
Apr 30, 2026
Vendor
Lobster DATA GmbH
Product
Lobster_pro
Classifications
CWE-611, CAPEC-664, CAPEC-497, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.12.6-GA

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Lobster DATA GmbH · Lobster_proversion=0 <4.12.6-GA

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.7SCHUTZWERKCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
CAPEC-664Server Side Request Forgery
CAPEC-497File Discovery
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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