CVE-2025-48317 Overview
CVE-2025-48317 is a path traversal vulnerability in the Stefan Keller WooCommerce Payment Gateway for Saferpay plugin for WordPress. The flaw affects all versions up to and including 0.4.9. Attackers can exploit the issue remotely over the network without authentication or user interaction. The vulnerability maps to CWE-35: Path Traversal: '.../...//', a variant in which sanitization routines fail to fully collapse traversal sequences. Successful exploitation enables an attacker to read files outside the intended directory, exposing sensitive configuration data, credentials, or source code from the underlying WordPress installation.
Critical Impact
Unauthenticated remote attackers can traverse the file system on WordPress sites running the Saferpay plugin and disclose sensitive files.
Affected Products
- Stefan Keller WooCommerce Payment Gateway for Saferpay plugin for WordPress
- All versions from initial release through 0.4.9
- WordPress sites with WooCommerce and the affected plugin enabled
Discovery Timeline
- 2025-09-05 - CVE-2025-48317 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2025-48317
Vulnerability Analysis
The plugin accepts user-supplied input that is incorporated into a file path without adequate normalization. Attackers can submit traversal sequences such as .../...// to escape the intended directory. This pattern bypasses naive filters that strip ../ only once, because removing the inner sequence reconstitutes a valid traversal token. The result is read access to arbitrary files on the web server within the privileges of the PHP process.
The issue is network-exploitable, requires no authentication, and produces high confidentiality impact while leaving integrity and availability intact. This profile is consistent with a file disclosure primitive rather than a write or execution flaw.
Root Cause
The root cause is improper sanitization of path segments before they are passed to a file read operation. The filter logic does not recursively collapse traversal sequences, allowing the .../...// variant to slip through. CWE-35 specifically captures this sanitization gap.
Attack Vector
An attacker issues an HTTP request to a vulnerable endpoint exposed by the plugin, supplying a crafted parameter that contains the traversal pattern. The plugin resolves the path relative to its own directory and reads a file outside the intended scope, such as wp-config.php, returning its contents in the response or rendering them in an error path. No credentials, no user interaction, and no prior foothold are required.
Refer to the Patchstack Vulnerability Advisory for additional technical context.
Detection Methods for CVE-2025-48317
Indicators of Compromise
- HTTP requests to plugin endpoints under /wp-content/plugins/woocommerce-payment-gateway-for-saferpay/ containing traversal sequences such as .../...//, ..%2f, or %2e%2e%2f.
- Web server access logs showing 200 responses to plugin requests with file path parameters referencing wp-config.php, /etc/passwd, or other sensitive files.
- Outbound exfiltration patterns following anomalous plugin requests from a single source IP.
Detection Strategies
- Inspect WordPress and reverse proxy logs for query strings or POST bodies containing repeated dots, slashes, or URL-encoded traversal tokens directed at the Saferpay plugin.
- Deploy Web Application Firewall (WAF) rules that normalize paths before applying traversal detection, ensuring the .../...// variant is collapsed correctly.
- Correlate plugin endpoint access with subsequent reads of sensitive WordPress files using file integrity monitoring (FIM) telemetry.
Monitoring Recommendations
- Enable verbose access logging on the WordPress front end and forward logs to a centralized SIEM for retention and correlation.
- Alert on high-volume requests targeting the Saferpay plugin path from a single source, particularly when paths contain encoded traversal characters.
- Monitor PHP process file access for reads of wp-config.php, .env, and credential files originating from the plugin context.
How to Mitigate CVE-2025-48317
Immediate Actions Required
- Identify all WordPress sites running the Stefan Keller WooCommerce Payment Gateway for Saferpay plugin at version 0.4.9 or earlier.
- Disable or remove the plugin until a fixed version is confirmed by the vendor and applied.
- Rotate any secrets that may have been exposed through wp-config.php, including database credentials, authentication keys, and salts.
Patch Information
At the time of publication, the Patchstack Vulnerability Advisory lists the vulnerability as affecting versions through <= 0.4.9. Administrators should monitor the plugin repository for a fixed release and upgrade immediately when one becomes available.
Workarounds
- Deactivate the plugin in wp-admin until a patched version is published.
- Apply WAF rules that block requests containing traversal patterns including .../...//, ../, and their URL-encoded equivalents targeting the plugin path.
- Restrict file system permissions for the PHP process so that sensitive files outside the WordPress webroot cannot be read.
# Example ModSecurity rule to block path traversal toward the plugin
SecRule REQUEST_URI "@contains /wp-content/plugins/woocommerce-payment-gateway-for-saferpay/" \
"chain,id:1004831,phase:2,deny,status:403,msg:'CVE-2025-48317 path traversal attempt'"
SecRule ARGS|REQUEST_URI "@rx (\.\.[\/\\]|\.\.\.[\/\\]{2}|%2e%2e%2f)" "t:lowercase,t:urlDecodeUni"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
