Security readout for executives and security teams
Plain-English summary
CVE-2021-36870 is a stored cross-site scripting issue in the WP Google Maps WordPress plugin through version 8.1.12. A privileged authenticated user could save malicious content in map-related fields, causing script execution later in the WordPress site context.
Executive priority
Treat this as a moderate-priority hygiene fix, not an emergency, unless untrusted users hold high WordPress privileges or the site is externally critical.
Technical view
The CVE describes multiple authenticated persistent XSS flaws in WP Google Maps parameters including dataset, GDPR, name, polygon, and address fields. CVSS 3.1 is 5.5: network reachable, low complexity, high privileges required, changed scope, low confidentiality and integrity impact, no availability impact.
Likely exposure
Exposure is limited to WordPress sites using Code Cabin WP Google Maps version 8.1.12 or earlier, especially where multiple administrators or trusted high-privilege users can edit map data.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Abuse requires authenticated high privileges, so the most realistic scenario is a malicious or compromised privileged WordPress account planting persistent script content.
Researcher notes
Evidence supports authenticated stored XSS in specific plugin parameters, but the bundle does not provide exploit proof, active exploitation, or precise remediation version. Avoid assuming public weaponization without additional sources.
Mitigation direction
- Inventory WordPress sites using the WP Google Maps plugin.
- Upgrade WP Google Maps beyond 8.1.12 after confirming vendor guidance.
- Restrict plugin and map-editing access to trusted administrators only.
- Review existing map, polygon, address, dataset, and GDPR fields for unexpected script content.
- Monitor vendor, WordPress plugin, and Patchstack pages for definitive fixed-version guidance.
Validation and detection
- Check each WordPress instance for the installed WP Google Maps plugin version.
- Confirm no production site remains on version 8.1.12 or earlier.
- Review administrator and high-privilege account activity around map content changes.
- Inspect affected stored fields for suspicious HTML or script-like values.
- After updating, verify normal map functionality and stored content rendering.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-36870 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N2.32.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://wordpress.org/plugins/wp-google-maps/#developersCVE reference · x_refsource_CONFIRM
- https://patchstack.com/database/vulnerability/wp-google-maps/wordpress-wp-google-maps-plugin-8-1-12-multiple-authenticated-persistent-cross-site-scripting-xss-vulnerabilitiesCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.