CVE-2024-13877
Published: 20 March 2025
Summary
CVE-2024-13877 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Sjehutch Passbeemedia Web Push Notification. 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 33.3th 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-2024-13877 is a reflected cross-site scripting (XSS) vulnerability in the Passbeemedia Web Push Notification WordPress plugin through version 1.0.0. The flaw arises because the plugin fails to sanitize and escape a parameter before outputting it back in the page, enabling arbitrary script execution in a victim's browser context. Mapped to CWE-79, it carries 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), indicating high severity due to its network accessibility and scope change.
Unauthenticated attackers can exploit this vulnerability remotely with low complexity by tricking a targeted user, such as a site administrator, into interacting with a malicious link or page via social engineering. Successful exploitation executes JavaScript in the victim's session, potentially allowing attackers to steal admin credentials, manipulate site content, or perform other actions with the victim's privileges, leading to low impacts on confidentiality, integrity, and availability.
The WPScan advisory at https://wpscan.com/vulnerability/0e8ce3cf-1598-4c5d-b119-99d5f676e619/ provides details on the vulnerability, including reproduction steps and affected versions. Security practitioners should consult this reference for mitigation recommendations, such as updating the plugin if a patch is available or removing it from WordPress sites.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-6753
Vulnerability details
The Passbeemedia Web Push Notification WordPress plugin through 1.0.0 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)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Reflected XSS in public-facing WordPress plugin directly enables exploitation of the web application (T1190) and arbitrary JavaScript execution in the victim's browser context (T1059.007).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly mitigates reflected XSS by requiring filtering and escaping of output before rendering in web pages, addressing the plugin's failure to sanitize parameters.
Prevents injection of malicious scripts by validating and rejecting unsanitized inputs before processing in the WordPress plugin.
Addresses the vulnerability through timely flaw remediation, such as patching or updating the vulnerable Passbeemedia plugin.