Cyber Resilience

CVE-2024-34452

MediumPublic PoC

Published: 21 June 2024

Published
21 June 2024
Modified
11 April 2025
KEV Added
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Patch
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CVSS Score v3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:L
EPSS Score 0.0039 60.6th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-34452 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Cmsimple-Xh Cmsimple Xh. Its CVSS base score is 6.1 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique SVG Smuggling (T1027.017); ranked in the top 39.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

CMSimple_XH 1.7.6 allows XSS by uploading a crafted SVG document.

CWE(s)
CWE-79

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1027.017 SVG Smuggling Stealth
Adversaries may smuggle data and files past content filters by hiding malicious payloads inside of seemingly benign SVG files.
attack.mitre.org →
T1059.007 JavaScript Execution
Adversaries may abuse various implementations of JavaScript for execution.
attack.mitre.org →
T1204.003 Malicious Image Execution
Adversaries may rely on a user running a malicious image to facilitate execution.
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 via crafted SVG upload enables SVG smuggling (T1027.017), malicious JavaScript execution (T1059.007), user execution of malicious images (T1204.003), and stealing web session cookies (T1539) as demonstrated in the POC and impact description.

Affected Assets

cmsimple-xh
cmsimple xh
1.7.6

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