CVE-2026-110701

CP Multi View Events Calendar <= 1.4.42 - Unauthenticated Stored Cross-Site Scripting via 'CalendarTitle' Parameter

2026-10-15 17:57

Strategic Overview

Status: Patched in 1.4.43
Affected Plugin: CP Multi View Events Calendar
Affected Version: <= 1.4.42
CVSS: 7.2High
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2026-110701

View all CP Multi View Events Calendar vulnerabilities

At a glance

CVE-2026-110701 is a high-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the CP Multi View Events Calendar WordPress plugin, affecting versions <= 1.4.42. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.4.43; sites on affected versions should update now. Disclosed October 2026, reported by Supakiad S. (m3ez).

Vulnerability Overview

The CP Multi View Events Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'CalendarTitle' parameter in all versions up to, and including, 1.4.42 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires that an administrator has enabled the "Allow edition in frontend?" option on at least one calendar view, which exposes the unauthenticated add endpoint and a publicly accessible nonce.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CP Multi View Events Calendar <= 1.4.42 carries this weakness at CalendarTitle, and reaching it takes no account at all. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For CP Multi View Events Calendar the fix is 1.4.43: builds <= 1.4.42 are affected, anything from 1.4.43 onward is not.

Remediation

Update to version 1.4.43, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: CP Multi View Events Calendar 1.4.43 closes this, and updating the plugin is the step that ends it.

Firewall
Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-110701 https://www.wordfence.com/threat-intel/vulnerabilities/id/12f2d3d3-4cc1-4569-9183-62f4841e72f7 https://nvd.nist.gov/vuln/detail/CVE-2026-110701

Related records

Same weakness class

Other vulnerabilities in CP Multi View Events Calendar

CVSS Vector

7.2

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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