CVE-2025-0863: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in flexmls Flexmls® IDX Plugin
The Flexmls® IDX Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'idx_frame' shortcode in all versions up to, and including, 3.14.27 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI Analysis
Technical Summary
CVE-2025-0863 is a stored cross-site scripting vulnerability in the Flexmls® IDX Plugin for WordPress, specifically in the 'idx_frame' shortcode. The plugin fails to properly sanitize and escape user input, allowing authenticated contributors or higher to inject malicious scripts. These scripts execute in the context of users who access the compromised pages, potentially leading to information disclosure or session hijacking. The vulnerability is present in all versions up to 3.14.27. No patch or remediation guidance has been provided in the available data.
Potential Impact
An attacker with contributor-level or higher privileges can inject persistent malicious scripts into pages via the 'idx_frame' shortcode. These scripts execute in the browsers of users who visit the infected pages, potentially leading to the theft of sensitive information or unauthorized actions performed on behalf of the user. The vulnerability does not affect availability but impacts confidentiality and integrity. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and consider disabling or limiting the use of the 'idx_frame' shortcode to reduce exposure.
CVE-2025-0863: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in flexmls Flexmls® IDX Plugin
Description
The Flexmls® IDX Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'idx_frame' shortcode in all versions up to, and including, 3.14.27 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-0863 is a stored cross-site scripting vulnerability in the Flexmls® IDX Plugin for WordPress, specifically in the 'idx_frame' shortcode. The plugin fails to properly sanitize and escape user input, allowing authenticated contributors or higher to inject malicious scripts. These scripts execute in the context of users who access the compromised pages, potentially leading to information disclosure or session hijacking. The vulnerability is present in all versions up to 3.14.27. No patch or remediation guidance has been provided in the available data.
Potential Impact
An attacker with contributor-level or higher privileges can inject persistent malicious scripts into pages via the 'idx_frame' shortcode. These scripts execute in the browsers of users who visit the infected pages, potentially leading to the theft of sensitive information or unauthorized actions performed on behalf of the user. The vulnerability does not affect availability but impacts confidentiality and integrity. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and consider disabling or limiting the use of the 'idx_frame' shortcode to reduce exposure.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-01-29T21:23:59.278Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 699f6b6cb7ef31ef0b5554ba
Added to database: 2/25/2026, 9:36:44 PM
Last enriched: 4/9/2026, 8:43:45 PM
Last updated: 4/12/2026, 2:41:32 PM
Views: 17
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