CVE-2026-1922: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in brianhogg The Events Calendar Shortcode & Block
The The Events Calendar Shortcode & Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `ecs-list-events` shortcode `message` attribute in all versions up to, and including, 3.1.2 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-2026-1922 is a stored cross-site scripting vulnerability in the The Events Calendar Shortcode & Block WordPress plugin, specifically in the ecs-list-events shortcode's message attribute. The flaw arises from improper neutralization of user-supplied input, allowing authenticated users with contributor-level permissions or higher to inject arbitrary web scripts. These scripts persist in the page content and execute in the context of any user accessing the injected page. The vulnerability affects all versions up to and including 3.1.2. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, privileges required, no user interaction, and impacts on confidentiality and integrity with scope change.
Potential Impact
Successful exploitation allows an authenticated contributor or higher to inject persistent malicious scripts into pages via the message attribute of the ecs-list-events shortcode. These scripts execute in the browsers of users visiting the affected pages, potentially leading to unauthorized actions or data disclosure within the context of the affected site. The impact is limited to confidentiality and integrity with no availability impact. There are no reports of active exploitation in the wild.
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 disabling or removing the vulnerable shortcode if feasible. Monitor official plugin channels for updates or patches addressing this vulnerability.
CVE-2026-1922: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in brianhogg The Events Calendar Shortcode & Block
Description
The The Events Calendar Shortcode & Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `ecs-list-events` shortcode `message` attribute in all versions up to, and including, 3.1.2 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-2026-1922 is a stored cross-site scripting vulnerability in the The Events Calendar Shortcode & Block WordPress plugin, specifically in the ecs-list-events shortcode's message attribute. The flaw arises from improper neutralization of user-supplied input, allowing authenticated users with contributor-level permissions or higher to inject arbitrary web scripts. These scripts persist in the page content and execute in the context of any user accessing the injected page. The vulnerability affects all versions up to and including 3.1.2. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, privileges required, no user interaction, and impacts on confidentiality and integrity with scope change.
Potential Impact
Successful exploitation allows an authenticated contributor or higher to inject persistent malicious scripts into pages via the message attribute of the ecs-list-events shortcode. These scripts execute in the browsers of users visiting the affected pages, potentially leading to unauthorized actions or data disclosure within the context of the affected site. The impact is limited to confidentiality and integrity with no availability impact. There are no reports of active exploitation in the wild.
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 disabling or removing the vulnerable shortcode if feasible. Monitor official plugin channels for updates or patches addressing this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-02-04T18:02:34.066Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 698afe6e4b57a58fa1f90105
Added to database: 2/10/2026, 9:46:22 AM
Last enriched: 4/9/2026, 11:25:05 AM
Last updated: 5/10/2026, 9:36:22 AM
Views: 148
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