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TI-2026-82293 Aliases CVE-2026-108685GHSA-p922-mx52-2wrj

WP Post Author lets visitors overwrite the first user's profile

Priority LOW 17CWE-862Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.

Summary

The WP Post Author WordPress plugin before 4.2.0 does not check that the account was created before updating its profile during front-end registration. Because of this missing authorization check (CWE-862), an unauthenticated remote attacker can overwrite the display name, nickname and website of the first user account, normally the administrator, when a registration form declares one of those fields. An exploit link is listed in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

The WP Post Author WordPress plugin before 4.2.0 does not check that the account was created before updating its profile during front-end registration, allowing unauthenticated users to overwrite the display name, nickname and website of the first user account, which is normally the administrator, when a registration form declares one of those fields.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00259 17th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed WP Post Author (Unknown): 4.2.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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 Post Authorbefore 4.2.04.2.0Patch availableCNA
  • WP Post Author VendorUnknown Affected before 4.2.0 Fixed in 4.2.0 Patch available CNA

Remediation

Update WP Post Author to version 4.2.0, which fixes the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA WP Post Author (Unknown) Fixed in 4.2.0

Fixed in the same release

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

  • Release ·

    WP Post Author 4.2.0

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-82294 Unauthenticated reCAPTCHA secret key leak in WP Post Author pluginPriority LOW 17
    Show all 2 records →

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-108685
  2. 2026-10-29 Alias added: GHSA-p922-mx52-2wrj
  3. 2026-10-29 CVSS score added · CISA ADP
  4. 2026-10-29 Weakness changed · CISA ADP
  5. 2026-10-29 CISA SSVC decision points changed

References

Exploit 1

Sources

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