CVE-2025-53561 Overview
CVE-2025-53561 is a path traversal vulnerability in the miniOrange Prevent files / folders access WordPress plugin (prevent-file-access). The flaw affects all plugin versions up to and including 2.6.0. An authenticated attacker with low privileges can craft traversal sequences of the form .../...// to escape the intended directory and read files outside the plugin's access-control scope. The issue is tracked under CWE-35: Path Traversal: '.../...//' and reported through the Patchstack WordPress Vulnerability Report.
Critical Impact
Authenticated attackers can read arbitrary files on the WordPress host, exposing configuration data, credentials in wp-config.php, and other sensitive server files.
Affected Products
- miniOrange Prevent files / folders access (prevent-file-access) WordPress plugin
- All versions from initial release through 2.6.0
- WordPress sites running the plugin regardless of underlying WordPress core version
Discovery Timeline
- 2025-08-20 - CVE-2025-53561 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-53561
Vulnerability Analysis
The vulnerability is a path traversal flaw classified under CWE-35, specifically the .../...// variant. This pattern defeats naive sanitization routines that strip only literal ../ sequences. When the filter removes one occurrence of ../, the residual characters collapse back into a valid traversal token.
The plugin's purpose is to restrict access to files and folders inside a WordPress installation. The traversal flaw undermines that control, allowing an attacker to request paths that resolve outside the protected directory. The result is unauthorized disclosure of file contents that the plugin was intended to gate.
Successful exploitation requires low-level authentication but no user interaction. Confidentiality impact is high, while integrity and availability are unaffected. EPSS data places the exploitation probability at 0.424% as of September 2026.
Root Cause
The root cause is insufficient normalization of user-supplied path input before it is passed to file access routines. Blocklist-style sanitization that removes ../ in a single non-recursive pass fails against overlapping traversal tokens such as .../...//. After the substring is removed once, the surrounding characters reassemble into ../, which is then honored by the underlying filesystem call.
Attack Vector
The attack is delivered over the network against the WordPress site. An authenticated user submits a request to a plugin endpoint that accepts a file path parameter. The attacker embeds the .../...// sequence in the parameter to traverse upward from the plugin's controlled directory into arbitrary locations on the filesystem. High-value targets include wp-config.php, .htaccess, backup archives, and files under /etc accessible to the web server user.
No verified public exploit is currently available. Refer to the Patchstack advisory for additional technical context.
Detection Methods for CVE-2025-53561
Indicators of Compromise
- HTTP request parameters containing .../...//, encoded variants such as %2E%2E%2F, or repeated traversal tokens targeting plugin endpoints
- Web server access logs showing authenticated users requesting file paths outside /wp-content/plugins/prevent-file-access/
- Successful reads of sensitive files such as wp-config.php correlated with plugin request patterns
Detection Strategies
- Inspect WordPress access logs for requests to prevent-file-access endpoints that include . or / sequences in query or POST parameters
- Deploy web application firewall (WAF) rules that normalize paths before evaluating traversal patterns to catch obfuscated .../...// payloads
- Correlate authenticated session activity with unusual file-read patterns from low-privilege accounts
Monitoring Recommendations
- Alert on file access by the web server process to paths outside the WordPress document root
- Enable WordPress activity logging to attribute plugin requests to specific authenticated user IDs
- Baseline normal plugin traffic and flag deviations in parameter length, encoding, or entropy
How to Mitigate CVE-2025-53561
Immediate Actions Required
- Audit WordPress installations for the prevent-file-access plugin and identify any version at or below 2.6.0
- Disable the plugin until a patched version is confirmed installed if update deployment is delayed
- Rotate WordPress secret keys and any credentials exposed in wp-config.php if traversal activity is observed in logs
Patch Information
At the time of NVD publication, no fixed version beyond 2.6.0 was documented in the CVE record. Site operators should consult the Patchstack advisory and the plugin's WordPress.org page for the latest release and apply it as soon as it becomes available.
Workarounds
- Remove or deactivate the prevent-file-access plugin until a fixed release is confirmed
- Restrict WordPress authenticated access to trusted administrators only, reducing the pool of accounts able to reach the vulnerable endpoint
- Deploy WAF signatures that decode URL parameters, canonicalize paths, and block traversal tokens including .../...// and encoded equivalents
- Enforce filesystem permissions that prevent the web server user from reading files outside the WordPress installation directory
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
