CVE-2025-71247 in SPIP
Summary
by MITRE • 02/19/2026
SPIP before 4.4.9 allows Blind Server-Side Request Forgery (SSRF) via syndicated sites in the private area. When editing a syndicated site, the application does not verify that the syndication URL is a valid remote URL, allowing an authenticated attacker to make the server issue requests to arbitrary internal or external destinations. This vulnerability is not mitigated by the SPIP security screen.
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Analysis
by VulDB Data Team • 02/19/2026
The vulnerability identified as CVE-2025-71247 represents a critical blind server-side request forgery flaw in the SPIP content management system prior to version 4.4.9. This vulnerability specifically affects the private administrative area of the application where users can manage syndicated sites. The flaw stems from insufficient input validation mechanisms that fail to properly verify the legitimacy of URLs provided during the syndication process. When administrators or authenticated users edit syndicated sites, the system accepts any URL without performing adequate validation checks to ensure it points to a legitimate remote destination.
The technical implementation of this vulnerability allows an attacker to manipulate the syndication URL field in a way that causes the server to make HTTP requests to arbitrary targets. This blind SSRF occurs because the application does not perform proper URL sanitization or validation before initiating outbound connections. The attacker can specify internal network addresses, loopback interfaces, or external domains that the server will attempt to reach, effectively enabling them to probe internal systems or redirect traffic through the vulnerable server. The vulnerability is particularly concerning because it operates in a privileged context where authenticated users have elevated permissions, making the potential impact significantly greater than typical public-facing SSRF vulnerabilities.
The operational implications of this vulnerability extend beyond simple information disclosure or network probing. An authenticated attacker could leverage this flaw to perform internal network reconnaissance by targeting internal services that might be accessible from the server hosting SPIP. The vulnerability allows attackers to potentially access internal systems that would otherwise be protected by network segmentation or firewalls, as the server acts as an intermediary that can make requests to these internal resources. Additionally, the attacker could potentially abuse this functionality to perform malicious actions such as data exfiltration, service disruption, or even as a stepping stone for further attacks within the network infrastructure.
The lack of mitigation by SPIP's security screen represents a critical oversight in the application's defense-in-depth approach. Security screens typically provide additional layers of protection against common attack patterns, but in this case, they fail to address the specific SSRF vector present in the syndication functionality. This vulnerability directly maps to CWE-918, which describes server-side request forgery vulnerabilities where applications fail to properly validate and sanitize user-supplied URLs before making outbound requests. From an ATT&CK perspective, this vulnerability aligns with T1190 - Proxying and T1071.004 - Application Layer Protocol: DNS, as it enables attackers to leverage the server as a proxy for network reconnaissance and data exfiltration activities.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and URL sanitization mechanisms within the syndication functionality. Organizations should immediately upgrade to SPIP version 4.4.9 or later, which contains the necessary patches to address this vulnerability. In the interim, administrators should consider implementing network-level restrictions such as firewall rules that prevent outbound connections to internal network segments from the server hosting SPIP. Additionally, implementing proper URL validation that ensures syndication URLs point to legitimate external domains and do not contain internal IP addresses or loopback references would provide effective protection against this specific attack vector. Network monitoring should also be enhanced to detect anomalous outbound traffic patterns that might indicate exploitation attempts.