CVE-2026-58315 in Page Handler
Summary
by MITRE • 07/07/2026
Cross-site request forgery vulnerability exists in SEIKO EPSON Web Config. If a user views a malicious page while logged into Web Config, unintended operations may be performed.
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Analysis
by VulDB Data Team • 07/07/2026
This cross-site request forgery vulnerability in SEIKO EPSON Web Config represents a critical security weakness that exploits the trust relationship between the web application and its authenticated users. The flaw resides in the application's failure to implement proper anti-CSRF mechanisms, allowing attackers to execute unauthorized actions through crafted malicious web pages. When an authenticated user visits a compromised website while maintaining an active session with the EPSON Web Config interface, the attacker can leverage the user's existing authentication context to perform operations without their knowledge or consent.
The technical implementation of this vulnerability stems from the absence of anti-CSRF tokens in the application's request processing logic. According to CWE-352, this classification specifically addresses cross-site request forgery vulnerabilities where applications fail to validate that requests originate from legitimate sources within the same site. The flaw operates by tricking the user's browser into submitting requests to the EPSON Web Config interface using the user's active session cookies, thereby executing administrative functions or configuration changes that should require explicit user authorization.
The operational impact of this vulnerability extends beyond simple data manipulation to potentially compromise the entire printer network infrastructure managed through the web interface. An attacker could modify printer settings, change network configurations, alter security parameters, or even disable critical services without the user's awareness. This risk is particularly concerning in enterprise environments where EPSON printers may be configured with administrative privileges and integrated into larger network management systems. The vulnerability aligns with ATT&CK technique T1531 which describes the exploitation of trusted relationships to gain access to systems through web application interfaces.
Mitigation strategies should focus on implementing robust anti-CSRF token mechanisms that are generated per session and validated on each request. The solution must include unique, unpredictable tokens embedded in all state-changing requests and verified server-side against the user's current session context. Additional protective measures include implementing proper SameSite cookie attributes, requiring user confirmation for critical operations, and establishing strict origin validation checks. Organizations should also consider implementing web application firewalls to detect and block suspicious cross-origin requests, along with regular security assessments to identify similar vulnerabilities in other web applications within their infrastructure.