Cyber Resilience

CVE-2024-40511

HighPublic PoC

Published: 27 September 2024

Published
27 September 2024
Modified
23 April 2025
KEV Added
—
Patch
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CVSS Score v3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.1392 94.5th percentile
Risk Priority 23 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-40511 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Openpetra Openpetra. Its CVSS base score is 7.3 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 5.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis

CVE-2024-40511 is a cross-site scripting vulnerability, tracked under CWE-79, that affects openPetra version 2023.02. The flaw resides in the serverMServerAdmin.asmx function and carries a CVSS 3.1 base score of 7.3, reflecting network attack vector, low attack complexity, and no required privileges or user interaction.

A remote attacker can send crafted input to the affected endpoint to trigger script execution, enabling the retrieval of sensitive information along with limited integrity and availability impacts on the application.

The two reference URLs point to the openPetra project repository and a separate disclosure repository; neither the CVE record nor the supplied references contain details on patches or mitigation steps. The associated EPSS score remains flat at 0.1392 with no observed increase after disclosure.

EU & UK References

Vulnerability details

Cross Site Scripting vulnerability in openPetra v.2023.02 allows a remote attacker to obtain sensitive information via the serverMServerAdmin.asmx function.

CWE(s)
CWE-79

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
attack.mitre.org →
Why these techniques?

XSS in public-facing openPetra web service (serverMServerAdmin.asmx) enables exploitation of public-facing application (T1190) and stealing authenticated users' session cookies via injected payload (T1539).

Affected Assets

openpetra
openpetra
2023.02

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References