CVE-2025-1440 Overview
CVE-2025-1440 affects the Advanced iFrame plugin for WordPress developed by tinywebgallery. The vulnerability exists in the aip_map_url_callback() function across all plugin versions up to and including 2024.5. Insufficient access restrictions allow unauthenticated attackers to update the advancediFrameParameterData option with excessive unvalidated data. The flaw is categorized under [CWE-20] Improper Input Validation and requires no authentication or user interaction to exploit over the network.
Critical Impact
Unauthenticated attackers can write arbitrary excessive data to the advancediFrameParameterData WordPress option, degrading site integrity and consuming database resources.
Affected Products
- tinywebgallery Advanced iFrame plugin for WordPress (all versions up to and including 2024.5)
- WordPress sites with the Advanced iFrame plugin installed and activated
- Any hosting environment running vulnerable plugin versions
Discovery Timeline
- 2025-03-26 - CVE-2025-1440 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-1440
Vulnerability Analysis
The Advanced iFrame plugin registers the aip_map_url_callback() function as a callback accessible without authentication checks. The function processes incoming requests and writes data into the advancediFrameParameterData WordPress option without validating the caller's identity or the size and content of the submitted payload.
Because WordPress options are persisted to the wp_options database table, unbounded writes create integrity and performance concerns. Repeated invocation can bloat the options table, disrupt legitimate plugin configuration, and interfere with normal site operation.
The vulnerability does not expose confidential information and does not directly enable code execution. Impact is limited to integrity of a single plugin option, which aligns with the CVSS integrity-only rating.
Root Cause
The root cause is missing capability and nonce verification on the aip_map_url_callback() handler combined with absent input validation. The function accepts requests from any source and persists supplied data using WordPress update_option() semantics without checking authorization or sanitizing size.
Attack Vector
An attacker sends crafted HTTP requests to the endpoint routing to aip_map_url_callback(), supplying arbitrary or oversized payload data. No credentials, session, or user interaction are required. The endpoint accepts the request and writes the payload to the advancediFrameParameterData option, overwriting legitimate plugin configuration data.
See the Wordfence Vulnerability Analysis for technical details on the vulnerable code path.
Detection Methods for CVE-2025-1440
Indicators of Compromise
- Unexpected growth of the wp_options table row for advancediFrameParameterData
- HTTP requests to admin-ajax endpoints referencing aip_map_url from unauthenticated sources
- Loss or corruption of Advanced iFrame plugin configuration in the WordPress admin
- Elevated database write activity correlated with external requests to the plugin endpoint
Detection Strategies
- Inspect webserver access logs for POST requests targeting admin-ajax.php with action=aip_map_url or similar parameters lacking authenticated session cookies
- Monitor the size of the advancediFrameParameterData option value in wp_options and alert on abnormal growth
- Deploy a web application firewall rule to flag repeated unauthenticated requests to the plugin callback
Monitoring Recommendations
- Enable WordPress activity logging and forward logs to a centralized SIEM for correlation
- Track database schema and row size changes on the wp_options table
- Alert on outbound anomalies from the site that could indicate follow-on abuse after configuration tampering
How to Mitigate CVE-2025-1440
Immediate Actions Required
- Update the Advanced iFrame plugin to a version later than 2024.5 as soon as a fixed release is available from the vendor
- Audit the current value of the advancediFrameParameterData option and restore known-good configuration if tampering is observed
- Restrict access to admin-ajax.php endpoints from untrusted sources using a web application firewall
Patch Information
The vendor addressed the missing authorization in the plugin repository. Review the WordPress Plugin Changeset for the specific code changes applied to the aip_map_url_callback() handler. Apply the update through the WordPress plugin manager or by replacing plugin files with the corrected version.
Workarounds
- Deactivate and remove the Advanced iFrame plugin until the site can be updated to a patched release
- Add server-level rules blocking unauthenticated POST requests referencing the aip_map_url action
- Deploy a virtual patch through a WAF that enforces capability checks before requests reach the plugin
# Example WAF rule fragment blocking unauthenticated access to the vulnerable action
# Adjust per your WAF vendor syntax
SecRule REQUEST_URI "@contains admin-ajax.php" \
"chain,deny,status:403,id:1004401,msg:'Block unauthenticated aip_map_url'"
SecRule ARGS:action "@streq aip_map_url" \
"chain"
SecRule &REQUEST_COOKIES:/wordpress_logged_in_/ "@eq 0"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
