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CP Multi View Event Calendar CVE-2026-109901

| EUVDEUVD-2026-100895 HIGH
SQL Injection (CWE-89)
2026-10-14 Patchstack GHSA-q5hr-3xmq-gw74
8.5
CVSS 3.1 · Vendor: Patchstack
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate as low-privileged WordPress user
  2. Exploit
    Identify vulnerable calendar plugin parameter
  3. Execution
    Inject crafted SQL payload
  4. Impact
    Extract sensitive database records

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Parameterized queries, prepared statements
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Persistence

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires an authenticated WordPress session with at least low-level privileges (CVSS PR:L) on a site that has the CP Multi View Event Calendar plugin installed and active at version 1.4.41 or earlier; the attacker then supplies malicious SQL through a vulnerable plugin input that is passed unsanitized into a database query. The primary limiting factors are the authentication requirement (a valid plugin-enabled account is needed, so this is not exploitable by fully anonymous visitors) and the dependency on the vulnerable plugin being installed and enabled; no non-default configuration beyond having the plugin active is indicated in the available data. The exact privileged role and injectable endpoint are not specified in the input and should be confirmed against the Patchstack advisory.

Impact

This is an authenticated SQL injection (CWE-89) in the Codepeople CP Multi View Event Calendar WordPress plugin (versions through 1.4.41), reported by Patchstack with a CVSS 3.1 base score of 8.5 (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L). The CVSS vector signals network-reachable, low-complexity exploitation requiring only low privileges (PR:L) and no user interaction, with a changed scope and high confidentiality impact - consistent with a typical Patchstack-scored WordPress plugin SQLi reachable by a low-privileged authenticated user. However, several key real-world signals are MISSING: there is no EPSS probability, no CISA KEV listing, and no public POC referenced in the input, so exploitation likelihood cannot be quantified. The PR:L requirement is a meaningful limiter - an attacker needs at least a valid authenticated account on the target WordPress site - which lowers real-world risk relative to a fully unauthenticated flaw despite the high 8.5 score. The input also lists I:N while rating A:L, which is atypical for SQL injection (injection commonly permits at least limited data modification); treat the exact impact breakdown as vendor-assigned and verify against the Patchstack advisory. Net: a genuine high-severity issue worth prioritized patching on affected sites, but absent KEV/EPSS/POC evidence it reads as a patch-soon vulnerability rather than a confirmed mass-exploitation emergency.

Exploit ScenarioDerived

An attacker holding a low-privileged authenticated account on a WordPress site running CP Multi View Event Calendar (<= 1.4.41) submits crafted input to a vulnerable plugin parameter that is concatenated into an SQL query, injecting their own SQL. This lets them read sensitive database contents such as user records and password hashes. No public exploit code is referenced in the available data, and the low attack complexity (AC:L) means a working payload would be straightforward once the injectable parameter is identified.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 14, 2026

Authenticated SQL injection in the Codepeople CP Multi View Event Calendar WordPress plugin (versions through 1.4.41) allows a logged-in user with low-level privileges to feed crafted input into an unsanitized database query, giving the attacker read access to data held in the site's WordPress database and potential limited manipulation of it. Patchstack rates the issue CVSS 3.1 8.5 (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L, CWE-89), and exploitation is contingent on the plugin being installed and active plus a valid account on the site - fully anonymous visitors cannot trigger it, and no public exploit code has been identified at time of analysis.

RemediationAI

Vendor-released patch: not confirmed in the available data - the supplied reference identifies 1.4.41 as the affected ceiling on the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/cp-multi-view-calendar/vulnerability/wordpress-cp-multi-view-event-calendar-plugin-1-4-41-sql-injection-vulnerability?_s_id=cve), so administrators should consult that advisory for the current fixed release and update the CP Multi View Event Calendar plugin through the WordPress plugin manager to that version or later, verifying the installed version afterwards. If no fixed release is yet published, the strongest compensating control is to deactivate the plugin until an update is available - the trade-off being the immediate loss of all event-calendar functionality on the site. Where the plugin must stay live, restrict the accounts that can reach plugin functionality to trusted administrators only, audit and remove stale or low-privilege subscriber/contributor accounts that could satisfy the PR:L prerequisite, and require strong unique passwords plus two-factor authentication so an attacker cannot cheaply obtain the authenticated session the exploit needs. As a detection and containment measure, enable WordPress database and web-server query logging and alert on anomalous SQL patterns or unexpected SELECTs against wp_users and wp_options; logging adds storage overhead and some query noise but does not block the injection itself. Finally, apply least-privilege to the WordPress database user so the application account cannot perform DDL or filesystem-level operations, which limits what an injected statement could achieve even if the authentication gate is satisfied.

Affected VersionsENISA

CP Multi View Event Calendar 0 ≤1.4.41

Affected Packages

euvd cp_multi_view_event_calendar no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The flaw is a classic CWE-89 improper neutralization of special elements in an SQL command, arising in a PHP-based WordPress plugin where user-supplied input reaches a database query without parameterization or escaping. The CPE string cpe:2.3:a:codepeople:cp_multi_view_event_calendar:*:*:*:*:*:*:*:* confirms the affected component is the Codepeople CP Multi View Event Calendar plugin distributed through the WordPress plugin ecosystem, rather than a standalone application or the WordPress core. Because the underlying technology is WordPress on MySQL/MariaDB, a successful injection can expose the contents of core tables (users, options, posts) and any plugin-specific tables the query touches, and the excessive-privilege style impact is reflected in the high confidentiality rating on the Patchstack vector while our independent assessment caps integrity impact at low. The plugin is commonly used to render multi-view event calendars on public-facing sites, so the vulnerable code path sits behind a plugin input that is reachable over HTTP but still gated by WordPress authentication under the assessed PR:L requirement.

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Severity by source

Vendor (Patchstack) PRIMARY 8.5 HIGH
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
vuln.today AI 7.6 HIGH

Network-reachable injectable parameter (AV:N/AC:L) requires a low-privileged authenticated account (PR:L, UI:N); SQLi yields high data disclosure (C:H) plus limited write/DoS (I:L/A:L); scope unchanged as impact stays within the DB-backed app.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
Low

DescriptionCVE.org

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Codepeople CP Multi View Event Calendar cp-multi-view-calendar allows SQL Injection.This issue affects CP Multi View Event Calendar : from n/a through 1.4.41.

Executive ViewAI

Why It Matters

A high-severity SQL injection flaw affects the Codepeople CP Multi View Event Calendar plugin for WordPress, in use across versions up to and including 1.4.41, and no vendor patch is currently available. Because the flaw requires only a low-privilege authenticated account - any subscriber-level user on a site running the plugin - it materially expands the pool of potential abusers beyond trusted administrators, exposing database contents such as user records and other sensitive site data. Leadership should care because the affected plugin is commonly deployed on public-facing event and community sites, and the absence of a fix means remediation depends on configuration changes or removal rather than routine patching.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim options: deactivate or remove the CP Multi View Event Calendar plugin (versions through 1.4.41) where it is not business-critical; if it must remain active, restrict and monitor site user accounts so that low-privilege authenticated access is tightly limited, disable open self-registration, and deploy a WAF or virtual patching rule targeting SQL injection input to the plugin's calendar parameters while monitoring database and application logs for anomalous query activity.

Threat Intelligence Overview

EPSS Score
0.3%
Top 81% exploitable
Prevalence
Low
niche WordPress event-calendar plugin, limited installed base
Social Media
2
Sightings
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +42
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.

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