CVE-2021-36871Network attack vector

Stored XSS via unneutralized map fields

Published Sep 9, 2021 · Updated Apr 28, 2026

Stored XSS in Code Cabin WP Go Maps Pro 8.1.11 and earlier allows remote authenticated users to inject scripts through map fields. The plugin stores category, attribute, icon, name, description, link, and title input without neutralizing executable markup before rendering it. Administrative map-editing access is required; injected script executes in the browser of a user who opens an affected view.

CVSS severity5.5
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Code Cabin WP Go Maps Pro 8.1.11 and earlier allows remote authenticated users to inject scripts through map fields. The plugin stores category, attribute, icon, name, description, link, and title input without neutralizing executable markup before rendering it. Administrative map-editing access is required; injected script executes in the browser of a user who opens an affected view.

The record

CVE
CVE-2021-36871
Published
Sep 9, 2021
Updated
Apr 28, 2026
Vendor
Code Cabin Pty Ltd
Product
WP Go Maps Pro
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.1.11 <=8.1.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Code Cabin Pty Ltd · WP Go Maps Proversion=8.1.11 <=8.1.11

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.5PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

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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