Mapster WP Maps: Missing authorization in REST API allows post modification
Summary
The Mapster WP Maps WordPress plugin before version 2.0.6 has a REST API route that writes post data without any authorization check. An unauthenticated remote attacker can overwrite the title of arbitrary posts, create published posts and change the plugin's stored settings. The attack requires no login, so any reachable WordPress site running an affected version is exposed.
Affected
- Mapster WP Maps WordPress plugin, all versions before 2.0.6 (VulDB lists up to 2.0.5)
Fixed in
- Version 2.0.6 (changelog entry not independently verified)
Workaround
- Unknown. No vendor workaround found.
- Until patched, restrict access to the plugin's REST endpoint if possible, or deactivate the plugin where its map features are not business-critical.
Exploitation
- No known exploitation in the wild.
- No public proof of concept found.
- CISA SSVC: exploitation none, automatable yes, technical impact partial.
Our recommendation
- Identify all WordPress sites running Mapster WP Maps and check the installed version.
- Update to version 2.0.6 or later and confirm the version afterwards.
- Check for unexpected posts or changed post titles and review plugin settings for tampering.
- Deactivate the plugin on sites where it is not business-critical until it is patched.
- Plan regular updates for this plugin, as it has had several other vulnerabilities.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- WPScan advisory wpscan.com
- Vulners CVE record vulners.com
- VulDB entry vuldb.com
- OffSeq threat radar radar.offseq.com
- Patchstack plugin database patchstack.com
- WordPress.org plugin page wordpress.org
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 2 Nov 2026, 10:42.
Original description (NVD)
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.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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