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MapProxy version 1.10.3 and older is vulnerable to a Cross Site Scripting attack in the…

Priority LOW 29CWE-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 · None
Fix status
Fixed

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

Summary

MapProxy version 1.10.3 and older is vulnerable to a Cross Site Scripting attack in the demo service resulting in possible information disclosure.

Why it matters now

EPSS 0.00783 56th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed MapProxy (PyPI): 1.11.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—MapProxy (PyPI)before 1.11.11.11.1Patch availableGHSA-g4rw-82hq-8jpr
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • MapProxy (PyPI) Vendor— Affected before 1.11.1 Fixed in 1.11.1 Patch available GHSA-g4rw-82hq-8jpr

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:omniscale:mapproxy:*:*:*:*:*:*:*:*up to 1.10.3VulnerableOmniscale
  • cpe:2.3:a:omniscale:mapproxy:*:*:*:*:*:*:*:* Versions up to 1.10.3 Vulnerable ·Omniscale

Remediation

  • Fix · GHSA-g4rw-82hq-8jpr MapProxy (PyPI) Fixed in 1.11.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-1000426
  2. 2026-10-03 Alias added: GHSA-g4rw-82hq-8jpr

References

Sources