CVE-2024-48761
Published: 29 January 2025
Summary
CVE-2024-48761 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Celk Celk Saude. 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 32.7% 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).
Deeper analysis
CVE-2024-48761 is a reflected cross-site scripting (XSS) vulnerability, classified under CWE-79, in Celk Sistemas Celk Saude version 3.1.252.1. The flaw enables a remote attacker to inject arbitrary JavaScript code via the "erro" parameter, as published on 2025-01-29 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 any remote attacker requiring no privileges or authentication, accessible over the network with low attack complexity, though it demands user interaction such as clicking a malicious link. Successful exploitation allows high-impact consequences on confidentiality, integrity, and availability, potentially enabling attackers to steal sensitive data like session tokens, perform account takeovers, or execute other client-side attacks within the victim's browser context.
References direct to a GitHub repository at https://github.com/gabriel-bri/vulnerability-research/tree/main/CVE-2024-48761, maintained by vulnerability researcher gabriel-bri, which contains details on the issue but no vendor-specific advisories or patch information are provided in the available data.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-43255
Vulnerability details
Reflected XSS vulnerability in Celk Sistemas Celk Saude v.3.1.252.1 allows a remote attacker to inject arbitrary JavaScript code via the "erro" parameter.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Reflected XSS vulnerability in the web application allows remote attackers to inject and execute arbitrary JavaScript code in victims' browsers, directly enabling exploitation of public-facing applications.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Validates the 'erro' parameter to block injection of arbitrary JavaScript code, directly preventing the reflected XSS vulnerability.
Filters and encodes information output derived from the 'erro' parameter to prevent execution of injected scripts in the victim's browser.
Implements secure error handling to avoid reflecting unsanitized input from the 'erro' parameter in error messages.