CVE-2026-1922Network attack vector

Contributor-level stored XSS via unescaped message attribute

Published Feb 10, 2026 · Updated Feb 10, 2026

Stored XSS in The Events Calendar Shortcode & Block 3.1.2 and earlier allows remote authenticated users to inject scripts. The ecs-list-events shortcode accepts the message attribute from user-authored content and renders it without sufficient input sanitization or output escaping. Contributor-level access is required, and the stored script executes in a visitor's browser when a page containing the crafted shortcode is viewed.

CVSS severity6.4
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in The Events Calendar Shortcode & Block 3.1.2 and earlier allows remote authenticated users to inject scripts. The ecs-list-events shortcode accepts the message attribute from user-authored content and renders it without sufficient input sanitization or output escaping. Contributor-level access is required, and the stored script executes in a visitor's browser when a page containing the crafted shortcode is viewed.

The record

CVE
CVE-2026-1922
Published
Feb 10, 2026
Updated
Feb 10, 2026
Vendor
Event Calendar Newsletter
Product
The Events Calendar Shortcode & Block
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <=3.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Event Calendar Newsletter · The Events Calendar Shortcode & Blockversion=* <=3.1.2

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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