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Events Manager CVE-2026-42689

| EUVDEUVD-2026-97734 LOW
Race Condition (CWE-362)
2026-10-12 Patchstack GHSA-w42x-pvj7-cqhg
3.7
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
    Reach plugin endpoint over network
  2. Delivery
    Send concurrent duplicate requests
  3. Exploit
    Win synchronization race window
  4. Execution
    Corrupt or alter shared state
  5. Impact
    Limited integrity impact

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V15 - Secure Coding and Architecture Concurrency control, locking
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

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

Exploitation Conditions

Exploitation requires winning a concurrency race condition (CWE-362) in Events Manager's handling of a shared resource, meaning an attacker must send tightly-timed concurrent requests and land within a narrow synchronization window - reflected by CVSS AC:H. No authentication (PR:N) or user interaction (UI:N) is needed and the vector is network-reachable, but the probabilistic timing requirement is the dominant limiting factor, substantially reducing reliability. Affected deployments are WordPress sites running Pixelite Events Manager at or below version 7.4.7; sites on a later patched release are not exposed.

Impact

This is a low-priority issue despite being network-reachable. The CVSS 3.1 base score is 3.7 (Low), and the vector (AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N) tells a consistent, non-alarming story: exploitation is unauthenticated and remote, but requires winning a race (AC:H), and the only consequence is a limited integrity impact with no confidentiality or availability loss. No EPSS score, KEV listing, SSVC decision, or POC was provided in the input, so there is no signal of active or probable exploitation - exploitation status is 'no public exploit identified at time of analysis.' One cross-source discrepancy is worth flagging: the Tags include 'Information Disclosure,' which implies confidentiality impact, yet the CVSS vector sets C:N and scores only I:L - the formal metrics and the tag disagree about the impact type, so the true outcome (integrity vs. disclosure) should be verified against the Patchstack advisory. Overall: a real but marginal defect, not an urgent patch priority on its own; schedule it with routine plugin maintenance.

Exploit ScenarioDerived

A remote, unauthenticated attacker repeatedly and concurrently triggers the same Events Manager operation to exploit a timing window in shared-resource handling, hoping to interleave requests so that one manipulates state the other is mid-processing. Because the race must be won (CVSS AC:H), success is probabilistic and may require many attempts, and the payoff is limited to a low-level integrity effect. No public proof-of-concept was identified in the provided data.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 12, 2026

Race condition in the Pixelite Events Manager WordPress plugin (versions through 7.4.7) lets a remote, unauthenticated attacker target a narrow synchronization window in the plugin's handling of a shared resource, resulting in a limited integrity impact with no confidentiality or availability effect. Exploitation hinges on winning a concurrency race - tightly-timed overlapping requests must land inside the vulnerable window (CVSS AC:H), a probabilistic timing requirement that substantially reduces reliability and keeps overall severity low. No public exploit has been identified at time of analysis, and there is no confirmed active exploitation (no CISA KEV listing).

RemediationAI

Update the Pixelite Events Manager plugin to a release later than 7.4.7, since the stated affected range ends at 7.4.7 and therefore a subsequent upstream release should contain the fix; the exact patched version is not independently confirmed in the provided data, so verify it against the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/events-manager/vulnerability/wordpress-events-manager-plugin-7-4-7-race-condition-vulnerability?_s_id=cve before treating the update as complete. Where immediate upgrading is not possible, compensating controls include throttling or rate-limiting requests to the plugin's event and AJAX endpoints at the WAF or reverse-proxy layer to collapse the concurrency an attacker needs (trade-off: added latency and possible interference with legitimate high-volume plugin operations), temporarily deactivating the plugin if event functionality is not business-critical (trade-off: loss of all event-management features), and restricting or blocking external access to event-related endpoints (trade-off: breaks public-facing event pages and bookings). Because exploitation requires winning a timing race, monitoring web logs for bursts of near-simultaneous requests to the same plugin endpoint can serve as a detection signal while patching is scheduled.

Affected VersionsENISA

Events Manager 0 ≤7.4.7

Affected Packages

euvd events_manager 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 root cause is CWE-362, Concurrent Execution using Shared Resource with Improper Synchronization, i.e., a classic race condition. Events Manager is a WordPress event-management plugin (CPE cpe:2.3:a:pixelite:events_manager) that stores and manipulates event, booking, and related records; the flawed code reads and writes a shared resource without adequate locking, atomic updates, or serialized access, so two overlapping requests can interleave in a way that subverts the intended state checks. This class of defect typically manifests as logic or state inconsistency rather than memory corruption, which matches the assessed vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N - network-reachable, no authentication (PR:N), no user interaction (UI:N), scoped impact, integrity-only low (I:L) with no confidentiality or availability loss. The high attack-complexity metric captures the dominant limiting factor: the attacker must issue concurrent requests timed precisely enough to win the synchronization window, making success unreliable rather than deterministic. Reporter tags from Patchstack describe the issue as a race condition with information-disclosure implications in the WordPress plugin ecosystem, reported by Patchstack and catalogued against Pixelite's Events Manager.

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Severity by source

Vendor (Patchstack) PRIMARY 3.7 LOW
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
vuln.today AI 3.7 LOW

Network-reachable and unauthenticated (AV:N/PR:N) but gated by a timing race (AC:H); only a limited integrity effect (I:L), with no confidentiality or availability impact.

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

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

DescriptionCVE.org

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Pixelite Events Manager events-manager allows Leveraging Race Conditions.This issue affects Events Manager: from n/a through 7.4.7.

Threat Intelligence Overview

EPSS Score
0.2%
Top 96% exploitable
Prevalence
Medium
popular WordPress events plugin, common but not on every site
Social Media
1
Sightings
Data Quality
5 sources
Confidence: Medium

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 LOW
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
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· derived
Defer
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Low
Technical Impact
Partial

Priority Score

18
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +18
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Race conditions occur when multiple concurrent requests exploit the brief time gap between checking a condition and acting upon it (TOCTOU - Time of Check, Time of Use).

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