CVE-2020-12077Public exploitNetwork attack vector

Authenticated code execution via unchecked AJAX template save

Published Apr 23, 2020 · Updated Aug 4, 2024

Improper access control in MapPress Maps Pro before 2.53.9 allows remote authenticated users to execute PHP code through AJAX. The ajax_save handler in mappress_template.php accepts attacker-chosen names and PHP content, then writes an executable file into the active theme directory without a nonce or capability check. A subscriber account is sufficient; the Pro-only template path permits site takeover, while the Free and Pro map handlers permit stored JavaScript in site content.

CVSS severity8.8
High
EPSS probability5.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in MapPress Maps Pro before 2.53.9 allows remote authenticated users to execute PHP code through AJAX. The ajax_save handler in mappress_template.php accepts attacker-chosen names and PHP content, then writes an executable file into the active theme directory without a nonce or capability check. A subscriber account is sufficient; the Pro-only template path permits site takeover, while the Free and Pro map handlers permit stored JavaScript in site content.

The record

CVE
CVE-2020-12077
Published
Apr 23, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, CAPEC-1, T1190, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 23, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5WordfenceCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
8.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.9WordfenceCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
6.5NIST National Vulnerability DatabaseAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs
T1190Exploit Public-Facing Application
T1505.003Server Software Component: Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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