CyberDudeBivash Vulnerability Analysis Report CVE-2025-54862 / CVE-2025-54759 — Sante PACS Server (Stored XSS)

 

Overview Table

CVE ID	Type	Affected Component	Impact	CVSS / Severity
CVE‑2025‑54862	Stored Cross‑Site Scripting (XSS)	Sante PACS Server web portal	Cookie theft, user redirection	CVSSv3: 5.4 / CVSSv4: 4.8 (Medium) vuldb.com+9Feedly+9RedPacket Security+9Feedly+14NVD+14Red Hat Customer Portal+14
CVE-2025-54759	Stored Cross-Site Scripting (XSS)	Sante PACS Server	Cookie theft, session hijack	CVSSv3: 6.1 / CVSSv4: 5.1 (Medium) Tenable®Feedly

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Deep Dive Analysis

CVE-2025-54862 — Stored XSS in PACS Portal

• The Sante PACS Server’s web portal improperly sanitizes user input, allowing persistent script injection (CWE‑79).

• Attackers could embed malicious HTML/JS that executes in a user’s browser—redirecting them to a malicious site or stealing session cookies. vuldb.com+15NVD+15Offseq Radar+15

• Exploit Characteristics:

  • Attack Vector: Network (remote exploitation).

  • Attack Complexity: Low

  • Privileges Required: Low (PR:L)

  • User Interaction: Required (UI:R)

  • Scope: Changed—can affect other components.

  • Confidentiality/Integrity: Low impact; Availability: None. Offseq Radar+6Offseq Radar+6Feedly+6Feedly+3Feedly+3CVE Vulnerabilities Database+3

CVE-2025-54759 — Stored XSS Vulnerability

• Similar stored XSS issue affecting Sante PACS Server, allowing malicious script injections to the portal. Feedly+15CVE+15Offseq Radar+15

• Exploit Metrics:

  • CVSS v3.1: 6.1 (Medium)

  • CVSS v4.0: 5.1 (Medium)

  • Network-based, Low complexity, No privileges needed, User interaction needed. CVE Vulnerabilities Database+6Tenable®+6Feedly+6FeedlyGitHub+4Offseq Radar+4CVE Vulnerabilities Database+4

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Impact Analysis & Defender’s Playbook

Attack Surface & Risk Context

• Remote and user-initiated, both CVEs allow persistent script attacks—ideal for session hijacking or phishing redirects.

• The target: healthcare PACS systems controlling sensitive imaging and patient data.

• Even moderate-severity XSS in healthcare systems can have severe regulatory, operational, and reputational consequences.

Mitigation Steps (🛡 Action Items)

1. Patch ASAP: Apply vendor-released patches once available.

2. Web Application Firewall (WAF): Deploy rules to detect/block XSS payloads.

3. Content Security Policy (CSP): Enable strict headers to limit inline script execution.

4. Input Sanitization: Implement reverse proxy or middleware to encode output and sanitize inputs if patching is delayed.

5. User Awareness: Educate staff on suspicious redirects and portal behavior.

6. Access Control: Restrict portal access to trusted segments and enforce strong session management.

7. Logging & Detection: Monitor for unusual UI events or cookie anomalies.

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Strategic Insight

These vulnerabilities expose the reality that even seemingly “medium risk” XSS flaws in healthcare systems are high-value targets. Attackers aren’t just after disruption—they’re seeking sensitive patient data or footholds within clinical workflows. Visibility, layered defenses, and rapid mitigation are essential here.

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