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TI-2018-12710 Aliases CVE-2018-17876GHSA-77cq-wgpf-g449

A Stored XSS vulnerability has been discovered in the v5.5.0 version of the Coaster CMS product.

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
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

A Stored XSS vulnerability has been discovered in the v5.5.0 version of the Coaster CMS product.

Why it matters now

EPSS 0.00998 62nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

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
—web-feet/coastercms (Packagist)——No fix listedGHSA-77cq-wgpf-g449
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • web-feet/coastercms (Packagist) Vendor— Affected — Fixed in — No fix listed GHSA-77cq-wgpf-g449

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:web-feet:coaster_cms:5.5.0:*:*:*:*:*:*:*5.5.0VulnerableWeb-feet
  • cpe:2.3:a:web-feet:coaster_cms:5.5.0:*:*:*:*:*:*:* Versions 5.5.0 Vulnerable ·Web-feet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-17876
  2. 2026-10-03 Alias added: GHSA-77cq-wgpf-g449

References

Exploit 1

Advisory 1

Other 1

Sources

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