Summary
A path traversal vulnerability in the Aspose Doc Exporter WordPress plugin allows unauthenticated attackers to access files outside the intended download directory. If the download endpoint accepts attacker-controlled paths without proper canonicalization and containment checks, sensitive files such as application configuration data may be disclosed.
A path traversal vulnerability in the Aspose Doc Exporter WordPress plugin allows unauthenticated attackers to access files outside the intended download directory. If the download endpoint accepts attacker-controlled paths without proper canonicalization and containment checks, sensitive files such as application configuration data may be disclosed.
Affected context
The vulnerability occurs in WordPress installations using the Aspose Doc Exporter plugin before version 2.0, where a download endpoint passes user-controlled file paths to file-reading functionality. Risk is increased when the endpoint is publicly reachable, does not require authentication, and lacks controls that restrict resolved paths to an approved directory.
The vulnerability occurs in WordPress installations using the Aspose Doc Exporter plugin before version 2.0, where a download endpoint passes user-controlled file paths to file-reading functionality. Risk is increased when the endpoint is publicly reachable, does not require authentication, and lacks controls that restrict resolved paths to an approved directory.
Exploit preconditions
- Attack surface: A publicly accessible HTTP download endpoint exposed by the WordPress plugin
- Required access: No authentication may be required
- Trigger point: Processing of a request parameter that identifies the file to read
- Why exploitation is possible: The supplied path is insufficiently sanitized or canonicalized before being passed to file-reading logic, allowing references outside the intended directory
- Attack surface: A publicly accessible HTTP download endpoint exposed by the WordPress plugin
- Required access: No authentication may be required
- Trigger point: Processing of a request parameter that identifies the file to read
- Why exploitation is possible: The supplied path is insufficiently sanitized or canonicalized before being passed to file-reading logic, allowing references outside the intended directory
Why this happens
The underlying bug is improper limitation of a user-controlled pathname before file access. When an application uses attacker-influenced input with file-reading functions without canonicalization and an enforced directory boundary, traversal sequences can cause the resolved path to escape the intended storage location. This behavior maps to CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
The underlying bug is improper limitation of a user-controlled pathname before file access. When an application uses attacker-influenced input with file-reading functions without canonicalization and an enforced directory boundary, traversal sequences can cause the resolved path to escape the intended storage location. This behavior maps to CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Potential impact
- Attackers may read sensitive application files
- Database credentials and other secrets could be disclosed
- WordPress configuration and operational data may be exposed
- Exposed credentials could enable further compromise of the site or connected services
- Disclosure of source code or deployment information could aid subsequent attacks
- Attackers may read sensitive application files
- Database credentials and other secrets could be disclosed
- WordPress configuration and operational data may be exposed
- Exposed credentials could enable further compromise of the site or connected services
- Disclosure of source code or deployment information could aid subsequent attacks
General mitigation guidance
Mitigation generally focuses on treating download identifiers as references rather than filesystem paths and enforcing a strict storage boundary.
Common defensive patterns include:
- Canonicalizing paths before access and verifying that the result remains within an approved directory
- Using server-side identifiers mapped to an allowlisted set of files
- Rejecting traversal markers, absolute paths, symbolic-link escapes, and unexpected path formats
- Applying authentication and authorization checks to file-download functionality where appropriate
- Limiting filesystem permissions and storing secrets outside web-accessible locations
- Avoiding disclosure of detailed filesystem errors in responses
Mitigation generally focuses on treating download identifiers as references rather than filesystem paths and enforcing a strict storage boundary.
Common defensive patterns include:
- Canonicalizing paths before access and verifying that the result remains within an approved directory
- Using server-side identifiers mapped to an allowlisted set of files
- Rejecting traversal markers, absolute paths, symbolic-link escapes, and unexpected path formats
- Applying authentication and authorization checks to file-download functionality where appropriate
- Limiting filesystem permissions and storing secrets outside web-accessible locations
- Avoiding disclosure of detailed filesystem errors in responses
How teams detect issues like this
Organizations can look for this weakness through:
- Static analysis rules identifying user-controlled input passed to file APIs
- Code review checks for missing canonicalization and directory-containment validation
- Dynamic testing of download endpoints with normalized and abnormal path forms in authorized environments
- Web-server and application-log monitoring for repeated requests containing traversal indicators
- Policy enforcement requiring allowlisted file references for download features
Automated security review tools may help identify path construction and file-access patterns that require manual validation.
Organizations can look for this weakness through:
- Static analysis rules identifying user-controlled input passed to file APIs
- Code review checks for missing canonicalization and directory-containment validation
- Dynamic testing of download endpoints with normalized and abnormal path forms in authorized environments
- Web-server and application-log monitoring for repeated requests containing traversal indicators
- Policy enforcement requiring allowlisted file references for download features
Automated security review tools may help identify path construction and file-access patterns that require manual validation.
