Summary
Photoview through version 2.4.0 contains a SQL injection vulnerability in its album download route. An unauthenticated attacker may manipulate the album identifier in the URL to run crafted database queries and extract arbitrary stored data through blind or time-based techniques.
Affected context
The vulnerability occurs in Photoview's album download endpoint when the album identifier from the request path is incorporated into a database query without adequate parameterization or validation. Because the route is accessible without authentication, deployments exposing this endpoint to untrusted networks may have a broader attack surface.
Exploit preconditions
- Attack surface: HTTP album download route
- Required access: No authentication may be required
- Trigger point: Processing of the
album_idpath segment - Why exploitation is possible: User-controlled input may influence SQL statement execution instead of being handled solely as a data value
Why this happens
The underlying issue is an insufficient separation between SQL code and user-supplied data. When a path parameter is concatenated into a query or otherwise processed without reliable parameter binding, crafted expressions can alter query behavior. This represents CWE-89: Improper Neutralization of Special Elements used in an SQL Command, commonly known as SQL injection.
Potential impact
- An attacker may retrieve arbitrary data from accessible database tables
- Sensitive user, album, or application information could be disclosed
- Database contents may be inferred through blind or time-based responses
- Queries could potentially be altered beyond the intended album lookup
- Application availability or data integrity could be affected, depending on database privileges
General mitigation guidance
Mitigation generally centers on ensuring that all request-derived values remain data rather than executable SQL.
Common defensive patterns include:
- Use parameterized queries or prepared statements for album lookups
- Apply strict type and range validation to identifier inputs
- Avoid constructing SQL statements through string concatenation
- Limit database account permissions to only the operations the application requires
- Keep sensitive database services isolated from untrusted networks
- Return uniform errors and responses that do not expose query details or timing information
How teams detect issues like this
Organizations can look for SQL injection risks through:
- Static analysis rules identifying string-built SQL statements involving route parameters
- Code review checks for missing parameter binding and weak identifier validation
- Dynamic testing of public endpoints with safe injection-detection techniques
- Web application firewall or API gateway policies for suspicious SQL metacharacters and expressions
- Database monitoring for anomalous query timing, syntax errors, and unusual read patterns
- Automated security review tools that flag unparameterized database access
