CVE-2024-13863

HighPublic PoC

Published: 25 March 2025

Published

25 March 2025

Modified

29 April 2025

KEV Added

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Patch

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CVSS Score v3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

EPSS Score 0.0011 29.8th percentile

Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-13863 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Wppluginbox Stylish Google Sheet Reader. Its CVSS base score is 7.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 29.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

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

Deeper analysis

CVE-2024-13863 is a reflected cross-site scripting (XSS) vulnerability in the Stylish Google Sheet Reader WordPress plugin version 4.0 and prior to 4.1. The flaw arises because the plugin fails to sanitize and escape a parameter before outputting it back in the page, allowing malicious scripts to be injected and executed in a victim's browser. It has a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L) and is associated with CWE-79 (Cross-Site Scripting).

An unauthenticated attacker over the network can exploit this vulnerability with low complexity by crafting a malicious URL or payload that includes the unsanitized parameter. The attack requires user interaction, such as an administrator clicking a link or visiting a malicious page, after which the payload executes in the context of the high-privilege user's browser session. This could enable the attacker to steal session cookies, perform actions on behalf of the victim, or conduct further attacks within the WordPress site.

Mitigation involves updating the Stylish Google Sheet Reader plugin to version 4.1 or later, which addresses the sanitization issue. Additional details are available in the WPScan advisory at https://wpscan.com/vulnerability/a6161595-0934-4baa-9da6-73792f4b87fd/.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2024-54504

Vulnerability details

The Stylish Google Sheet Reader 4.0 WordPress plugin before 4.1 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as…

admin

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 →

T1059.007 JavaScript Execution

Adversaries may abuse various implementations of JavaScript for execution.

attack.mitre.org →

Why these techniques?

Reflected XSS in public-facing WordPress plugin directly enables exploitation of public-facing applications (T1190) and arbitrary JavaScript execution in the victim's browser (T1059.007), facilitating session cookie theft and actions on behalf of the user.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0