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TI-2026-85354 Aliases CVE-2026-86442GHSA-3jgh-hp3g-cxqq

Unauthenticated overwrite of unpublished posts in WP Event Manager

Priority MEDIUM 41CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-639.

Summary

The WP Event Manager WordPress plugin from 3.4.0 before 3.4.2 does not verify the ownership or post type of a user-supplied post identifier in its front-end event submission flow. Unauthenticated attackers can read and overwrite the content of arbitrary unpublished posts and pages and convert them into events (CWE-639). The references include an exploit link.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

The WP Event Manager WordPress plugin before 3.4.2 does not verify the ownership or the post type of a user supplied post identifier in its front-end event submission flow, allowing unauthenticated attackers to read and overwrite the content of arbitrary unpublished posts and pages, and to convert them into events.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00193 9th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed WP Event Manager (Unknown): 3.4.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownWP Event Manager3.4.0 to before 3.4.23.4.2Patch availableCNA
  • WP Event Manager VendorUnknown Affected 3.4.0 to before 3.4.2 Fixed in 3.4.2 Patch available CNA

Remediation

Update WP Event Manager to version 3.4.2 or later. Versions before 3.4.2 are affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA WP Event Manager (Unknown) Fixed in 3.4.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    WP Event Manager 3.4.2

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-85348 Post takeover by subscribers in WP Event Manager pluginPriority LOW 37
    Show all 2 records →

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-86442
  2. 2026-11-05 Alias added: GHSA-3jgh-hp3g-cxqq
  3. 2026-11-06 CVSS score added · CISA ADP
  4. 2026-11-06 Weakness changed · CISA ADP
  5. 2026-11-06 CISA SSVC decision points changed
  6. 2026-11-06 Priority changed: LOW → MEDIUM

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences