CVE-2026-1820: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in brainvireinfo Media Library Alt Text Editor
The Media Library Alt Text Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'bvmalt_sc_div_update_alt_text' shortcode in all versions up to, and including, 1.0.0 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-2026-1820 is a stored cross-site scripting vulnerability in the brainvireinfo Media Library Alt Text Editor WordPress plugin. The issue is due to improper neutralization of input during web page generation, specifically in the 'bvmalt_sc_div_update_alt_text' shortcode, which fails to properly sanitize and escape user-supplied attributes. This allows authenticated users with contributor-level access or higher to inject arbitrary web scripts that execute in the context of other users viewing the injected content. The vulnerability affects all versions up to and including 1.0.0 and has a CVSS 3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N).
Potential Impact
An attacker with contributor-level or higher privileges can exploit this vulnerability to inject persistent malicious scripts into pages via the vulnerable shortcode. These scripts execute in the browsers of users who view the compromised pages, potentially leading to information disclosure and integrity impacts. Availability is not affected. 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 available, restrict contributor-level access to trusted users only and consider removing or disabling the Media Library Alt Text Editor plugin if feasible to prevent exploitation.
CVE-2026-1820: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in brainvireinfo Media Library Alt Text Editor
Description
The Media Library Alt Text Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'bvmalt_sc_div_update_alt_text' shortcode in all versions up to, and including, 1.0.0 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-2026-1820 is a stored cross-site scripting vulnerability in the brainvireinfo Media Library Alt Text Editor WordPress plugin. The issue is due to improper neutralization of input during web page generation, specifically in the 'bvmalt_sc_div_update_alt_text' shortcode, which fails to properly sanitize and escape user-supplied attributes. This allows authenticated users with contributor-level access or higher to inject arbitrary web scripts that execute in the context of other users viewing the injected content. The vulnerability affects all versions up to and including 1.0.0 and has a CVSS 3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N).
Potential Impact
An attacker with contributor-level or higher privileges can exploit this vulnerability to inject persistent malicious scripts into pages via the vulnerable shortcode. These scripts execute in the browsers of users who view the compromised pages, potentially leading to information disclosure and integrity impacts. Availability is not affected. 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 available, restrict contributor-level access to trusted users only and consider removing or disabling the Media Library Alt Text Editor plugin if feasible to prevent exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-02-03T14:16:03.830Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69abd7c1c48b3f10ff6855e4
Added to database: 3/7/2026, 7:46:09 AM
Last enriched: 4/9/2026, 6:34:24 PM
Last updated: 4/21/2026, 9:56:35 PM
Views: 65
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