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TI-2026-83477 Aliases CVE-2026-118638GHSA-gwmh-v933-p43v

Missing authorization in Mapster WP Maps lets attackers modify posts

Priority LOW 38CWE-862Published · Updated

Key facts

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

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

Summary

The Mapster WP Maps WordPress plugin before 2.0.6 does not check authorization on a REST API route that writes post data. An unauthenticated remote attacker can overwrite the title of arbitrary posts, create arbitrary published posts, and overwrite the plugin's stored settings. The flaw is classified as missing authorization (CWE-862).

Written with Claude Haiku 5.5 from the sources below · 2026-11-01

Description from the CNA

The Mapster WP Maps WordPress plugin before 2.0.6 does not perform any authorization check on a REST API route that writes post data, allowing unauthenticated attackers to overwrite the title of arbitrary posts, create arbitrary published posts, and overwrite the Mapster WP Maps WordPress plugin before 2.0.6's stored settings.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00253 16th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Mapster WP Maps (Unknown): 2.0.6

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
UnknownMapster WP Mapsbefore 2.0.62.0.6Patch availableCNA
  • Mapster WP Maps VendorUnknown Affected before 2.0.6 Fixed in 2.0.6 Patch available CNA

Remediation

Update Mapster WP Maps to version 2.0.6 or later, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-01

  • Fix · CNA Mapster WP Maps (Unknown) Fixed in 2.0.6

Timeline

  1. 2026-10-31 Threatist record created from CVE-2026-118638
  2. 2026-10-31 Alias added: GHSA-gwmh-v933-p43v
  3. 2026-11-01 CVSS score added · CISA ADP
  4. 2026-11-01 Weakness changed · CISA ADP
  5. 2026-11-01 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