CVE-2026-65713 Overview
CVE-2026-65713 is a path traversal vulnerability [CWE-22] affecting a Regular Labs component that renders modal galleries. The flaw allows gallery path parameters to reference directories outside the intended scope, enabling enumeration of unintended file system locations. An attacker can manipulate the path input to list directory contents that the application was not designed to expose.
Critical Impact
Attackers can enumerate unintended directories on the host, exposing file names, structure, and potentially sensitive artifacts that facilitate follow-on attacks.
Affected Products
- Regular Labs component with modals gallery functionality (specific product and version not disclosed in the advisory)
Discovery Timeline
- 2026-07-23 - CVE-2026-65713 published to NVD
- 2026-07-23 - Last updated in NVD database
Technical Details for CVE-2026-65713
Vulnerability Analysis
The vulnerability is classified under [CWE-22] Improper Limitation of a Pathname to a Restricted Directory. The modals gallery feature accepts a path parameter used to locate gallery assets on the server. The component fails to properly constrain the resolved path to the intended gallery root directory.
As a result, path values that traverse upward through the directory tree resolve to arbitrary locations on the file system. The application then enumerates contents at the attacker-controlled location, disclosing directory listings that were never intended to be reachable through the gallery interface. The disclosure of file names and directory structure supports reconnaissance for subsequent attacks, including targeted file inclusion or credential harvesting where sensitive files are identified.
Root Cause
The root cause is insufficient validation and canonicalization of user-supplied path input. The gallery loader does not verify that the resolved absolute path remains within the designated gallery base directory before performing directory enumeration.
Attack Vector
An attacker submits a crafted path value to the modals gallery endpoint. The value contains traversal sequences that escape the intended gallery root. The server resolves the composite path, reads the target directory, and returns its contents to the requester. Refer to the Regular Labs Security Resources page for vendor-published details.
Detection Methods for CVE-2026-65713
Indicators of Compromise
- Web server or application logs containing gallery path parameters with traversal sequences such as ../, ..\, URL-encoded %2e%2e%2f, or double-encoded variants
- Unexpected directory enumeration responses returned from modal gallery endpoints
- Repeated gallery requests from a single source that vary only in the path parameter
Detection Strategies
- Inspect access logs for requests to modal gallery handlers that carry absolute paths or parent-directory tokens in query parameters
- Alert on gallery responses whose returned file listings include system paths, configuration directories, or user home directories
- Correlate anomalous gallery requests with subsequent access attempts to newly enumerated file names
Monitoring Recommendations
- Enable verbose logging on the component that services gallery paths and retain request parameters for review
- Deploy a web application firewall rule set that flags traversal patterns targeting gallery URLs
- Baseline normal gallery path values and alert on deviations that reference paths outside the media directory
How to Mitigate CVE-2026-65713
Immediate Actions Required
- Identify all deployments of the affected Regular Labs component and inventory exposed gallery endpoints
- Restrict access to administrative and gallery configuration endpoints to authenticated users where feasible
- Apply web application firewall rules that reject requests containing path traversal sequences in gallery parameters
Patch Information
Consult the Regular Labs Security Resources page for the vendor advisory and updated component release. Upgrade to the fixed version once available and validate that gallery paths are properly constrained after the update.
Workarounds
- Disable the modals gallery feature until the patched version is deployed
- Configure the application to serve gallery content from a chrooted or symlink-free directory dedicated to public media
- Enforce an allow-list of permitted gallery root paths at the reverse proxy or WAF layer
# Example WAF rule pattern (ModSecurity) to block traversal in gallery parameters
SecRule ARGS_NAMES "@rx (?i)(path|folder|gallery)" \
"chain,id:1006571,phase:2,deny,status:403,msg:'Path traversal in gallery parameter'"
SecRule ARGS "@rx (\.\./|\.\.\\|%2e%2e%2f|%2e%2e/)" "t:none,t:urlDecodeUni"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
