CVE-2025-31050 Overview
CVE-2025-31050 is a path traversal vulnerability affecting the Apptha Slider Gallery plugin for WordPress, developed by appthaplugins. The flaw exists in all versions up to and including 2.5. An unauthenticated attacker can manipulate file path parameters to read arbitrary files on the underlying server. The issue is classified under CWE-22 (Improper Limitation of a Pathname to a Restricted Directory).
Critical Impact
Remote unauthenticated attackers can read sensitive files outside the intended directory, including wp-config.php, exposing database credentials and WordPress secret keys.
Affected Products
- Apptha Slider Gallery WordPress plugin (apptha-slider-gallery)
- All versions from n/a through 2.5
- WordPress installations using the vulnerable plugin
Discovery Timeline
- 2025-06-09 - CVE-2025-31050 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2025-31050
Vulnerability Analysis
The vulnerability stems from improper validation of user-supplied input used to construct file paths within the Apptha Slider Gallery plugin. The plugin accepts a filename parameter without normalizing or restricting the path to an allowed directory. Attackers can submit traversal sequences such as ../ to escape the intended directory and access arbitrary files on the server filesystem.
The issue is exploitable over the network without authentication or user interaction. Confidentiality impact is high, while integrity and availability are not directly affected. The EPSS probability is 0.498% at the 66th percentile, indicating moderate predicted exploit activity relative to other published CVEs.
Root Cause
The plugin fails to canonicalize and validate file path input before passing it to file read operations. Functions handling gallery image or asset retrieval do not enforce a base directory boundary. There is no allowlist of permitted file extensions or directories, allowing traversal beyond the plugin's storage location.
Attack Vector
An unauthenticated remote attacker sends a crafted HTTP request to a vulnerable endpoint exposed by the plugin. The request includes a manipulated file or path parameter containing directory traversal sequences. The server resolves the path and returns the contents of the requested file. Targets of interest include wp-config.php, /etc/passwd, log files, and other readable configuration files containing credentials or secrets.
The vulnerability is described in prose only because no verified proof-of-concept code is published. See the Patchstack Vulnerability Report for additional technical context.
Detection Methods for CVE-2025-31050
Indicators of Compromise
- HTTP requests to Apptha Slider Gallery endpoints containing ../ or URL-encoded traversal sequences such as %2e%2e%2f
- Web server access logs showing requests with filename parameters referencing wp-config.php, /etc/passwd, or .env files
- Outbound transfers of WordPress configuration files following plugin endpoint access
Detection Strategies
- Inspect HTTP request parameters routed to apptha-slider-gallery plugin paths for path traversal patterns
- Deploy web application firewall (WAF) rules that decode and inspect query parameters for traversal payloads before delivery to PHP handlers
- Correlate plugin endpoint access with subsequent authentication anomalies that suggest credential reuse from leaked wp-config.php content
Monitoring Recommendations
- Enable verbose access logging on the WordPress web server and forward logs to a centralized analytics platform
- Monitor for unusual response sizes from plugin endpoints, which can indicate arbitrary file disclosure
- Track file integrity on wp-config.php and database credential rotation events following any suspected exposure
How to Mitigate CVE-2025-31050
Immediate Actions Required
- Deactivate and remove the Apptha Slider Gallery plugin from all WordPress instances until a patched version is published
- Audit web server logs for traversal patterns targeting the plugin and assess whether wp-config.php or other sensitive files were accessed
- Rotate WordPress database credentials, authentication keys, and salts if exposure is suspected
Patch Information
No patched version of Apptha Slider Gallery beyond 2.5 is referenced in the published advisory. Administrators should monitor the Patchstack Vulnerability Report and the plugin vendor's distribution channel for updates. If no fix is forthcoming, remove the plugin permanently and migrate to an actively maintained alternative.
Workarounds
- Block requests containing ../, ..\, and URL-encoded traversal sequences at the WAF or reverse proxy layer
- Restrict file system permissions so the PHP process cannot read sensitive files outside the web root
- Apply virtual patching rules from a managed WordPress security service until the plugin is removed or updated
# Example ModSecurity rule to block path traversal targeting the plugin
SecRule REQUEST_URI "@contains apptha-slider-gallery" \
"chain,id:1003105,phase:2,deny,status:403,msg:'Apptha Slider Gallery path traversal attempt'"
SecRule ARGS "@rx (\.\./|\.\.\\|%2e%2e%2f|%2e%2e/)" "t:lowercase,t:urlDecodeUni"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
