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NVD / CVE Program· CNA Patchstack

CVE-2026-40776: WordPress Eventin plugin <= 4.1.8 - Broken Access Control vulnerability

Noroxi assessment

Priority: Monitor (action score 30/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.41% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: Arraytics WP Event SOlution 4.1.9.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Arraytics WP Event SOlution 4.1.9 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Unauthenticated Broken Access Control in WP Event SOlution <= 4.1.8 versions.

HighCVSS 7.5 · v3.1—Proof of concept Fix available
Published
Jun 15, 2026
Updated
Oct 25, 2026
EPSS
0.4% · 35th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Patchstack
7.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Patchstack). Independent of NVD's CPE analysis and usually ahead of it.

  • Arraytics WP Event SOlution

    • n/a and later · up to and including 4.1.8affectedfixed in 4.1.9

Same product

arraytics: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-68045WordPress WP Event SOlution plugin <= 4.1.12 - Broken Access Control vulnerability
    30Monitor
  • CVE-2026-112844WordPress WP Event Solution plugin <= 4.1.26 - Cross Site Scripting (XSS) vulnerability
    28Monitor
  • CVE-2026-28173WordPress WP Event SOlution plugin <= 4.1.19 - Arbitrary Content Deletion vulnerability
    28Monitor

Published before and after this one in the same product

  • Later →CVE-2026-66451Aug 6, 2026 · WordPress WP Event SOlution plugin <= 4.1.9 - Broken Authentication vulnerability
    26Monitor
  • Later →CVE-2026-28174Aug 13, 2026 · WordPress WP Event SOlution plugin <= 4.1.18 - Sensitive Data Exposure vulnerability
    26Monitor
  • Later →CVE-2026-82223Sep 2, 2026 · WordPress WP Event SOlution plugin <= 4.1.22 - Broken Access Control vulnerability
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Arraytics WP Event SOlution4.1.9Vendor (CNA)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:22026-05-06

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-41 d
  2. Published
  3. TodayOct 30, 2026+137 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-680451 days apartWordPress WP Event SOlution plugin <= 4.1.12 - Broken Access Control vulnerability
    30Monitor
  • CVE-2026-2817359 days apartWordPress WP Event SOlution plugin <= 4.1.19 - Arbitrary Content Deletion vulnerability
    28Monitor
  • CVE-2026-8222379 days apartWordPress WP Event SOlution plugin <= 4.1.22 - Broken Access Control vulnerability
    26Monitor
  • CVE-2026-103684112 days apartWordPress WP Event Solution plugin <= 4.1.25 - Broken Access Control vulnerability
    21Monitor
  • CVE-2026-109898120 days apartWordPress WP Event Solution plugin <= 4.1.25 - Broken Access Control vulnerability
    21Monitor
  • CVE-2026-110380123 days apartWordPress WP Event Solution plugin <= 4.1.26 - Broken Access Control vulnerability
    21Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-862 · Missing Authorization

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records