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TI-2026-67933 Aliases CVE-2026-39720GHSA-3c23-3582-jh63

Cross-site scripting in Mapster WP Maps WordPress plugin

Priority LOW 31CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Mapster WP Maps, a WordPress plugin, is affected through 2.0.4. Improper neutralization of input during web page generation (CWE-79) lets attacker-supplied script be included in pages. An unauthenticated remote attacker can run script in a victim's browser when the victim interacts with a crafted page.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Unauthenticated Cross Site Scripting (XSS) in Mapster WP Maps <= 2.0.4 versions.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0023 13th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
mapsterMapster WP Mapsup to 2.0.4—No fix listedCNA
  • Mapster WP Maps Vendormapster Affected up to 2.0.4 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Mapster WP Maps.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-39720
  2. 2026-10-06 Alias added: GHSA-3c23-3582-jh63
  3. 2026-10-06 CISA SSVC decision points changed
  4. 2026-10-06 Priority changed: MEDIUM → LOW

References

Other 1

  • TI-2026-11023 Improper input validation in Mapster WP Maps CVSS 3.1HIGH 8.8
  • TI-2024-08571 Mapster WP Maps <= 1.5.0 - Incorrect Authorization to Authenticated (Contributor+) Arbitrary Options Update CVSS 3.1HIGH 8.8
  • TI-2026-82329 Unauthenticated stored cross-site scripting in Mapster WP Maps CVSS 3.1HIGH 7.2
  • TI-2024-09814 Mapster WP Maps <= 1.6.0 - Authenticated (Contributor+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4
  • TI-2024-14430 WordPress Mapster WP Maps Plugin <= 1.2.38 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 6.5
  • TI-2025-08288 Mapster WP Maps <= 1.20.0 - Authenticated (Contributor+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences