CVE-2022-0537: MapPress Maps for WordPress < 2.73.13 - Admin+ File Upload to Remote Code Execution

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-04-04 · updated 2026-06-17
Weakness: CWE-434

Description

The MapPress Maps for WordPress plugin before 2.73.13 allows a high privileged user to bypass the DISALLOW_FILE_EDIT and DISALLOW_FILE_MODS settings and upload arbitrary files to the site through the "ajax_save" function. The file is written relative to the current 's stylesheet directory, and a .php file extension is added. No validation is performed on the content of the file, triggering an RCE vulnerability by uploading a web shell. Further the name parameter is not sanitized, allowing the payload to be uploaded to any directory to which the server has write access.

Affected products

MapPress Maps for WordPress: before 2.73.13 — fixed in 2.73.13

How to fix

Upgrade to a fixed version: MapPress Maps for WordPress 2.73.13. Check the vendor advisory for mitigations.

References

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