Cyber Resilience

CVE-2024-4860

MediumPublic PoC

Published: 14 May 2024

Published
14 May 2024
Modified
25 March 2025
KEV Added
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Patch
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CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
EPSS Score 0.0022 44.8th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-4860 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Rebelcode Rss Aggregator. Its CVSS base score is 5.4 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique JavaScript (T1059.007); ranked at the 44.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

The 'WordPress RSS Aggregator' WordPress Plugin, versions < 4.23.9 are affected by a Cross-Site Scripting (XSS) vulnerability due to the lack of sanitization of the  'notice_id'  GET parameter.

CWE(s)
CWE-79

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1059.007 JavaScript Execution
Adversaries may abuse various implementations of JavaScript for execution.
attack.mitre.org →
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?

The reflected XSS vulnerability in the WordPress plugin allows injection of arbitrary JavaScript via the unsanitized 'notice_id' GET parameter, enabling exploitation of a public-facing web application (T1190), JavaScript execution in the victim's browser (T1059.007), and theft of web session cookies (T1539).

Affected Assets

rebelcode
rss aggregator
≤ 4.23.9

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