CVE-2024-51229

HighPublic PoC

Published: 09 January 2025

Published

09 January 2025

Modified

29 September 2025

KEV Added

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Patch

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CVSS Score 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Score 0.0204 84.0th percentile

Risk Priority 19 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-51229 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Pb-Cms Project Pb-Cms. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 16.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match

prevent

SI-2 mandates timely patching and remediation of the specific XSS flaw in the pb-cms theme management function.

SI-10 Information Input Validation good match

prevent

SI-10 requires validation of user inputs to the theme management function to block malicious script injection.

SI-15 Information Output Filtering good match

prevent

SI-15 enforces output filtering when rendering themes to prevent execution of injected XSS payloads.

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 →

Why these techniques?

XSS in public-facing CMS admin/theme function directly enables remote exploitation of the web application for code execution in user context.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

NVD Description

Cross Site Scripting vulnerability in LinZhaoguan pb-cms v.2.0 allows a remote attacker to execute arbitrary code via the theme management function.

Deeper analysisAI

CVE-2024-51229 is a Cross-Site Scripting (XSS) vulnerability, mapped to CWE-79, affecting LinZhaoguan pb-cms version 2.0. The issue exists in the theme management function, where a remote attacker can execute arbitrary code.

With a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), the vulnerability can be exploited by a remote attacker requiring no privileges over the network with low attack complexity, though user interaction is necessary. Successful exploitation enables high-impact effects on confidentiality, integrity, and availability, allowing arbitrary code execution.

Mitigation details are provided in the advisory at https://gitee.com/LinZhaoguan/pb-cms/issues/IAYHUP.