What’s Vulnerable › Vulnerabilities

CVE-2026-93659: Concrete CMS Community Store before 2.7.8 Stored XSS

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-18 · updated 2026-09-28
• Weakness: CWE-79

Description

Concrete CMS Community Store before 2.7.8 renders customer-supplied order fields without HTML escaping in checkout and admin views. Unauthenticated attackers can store script payloads in billing name, email, or phone fields that execute in authenticated manager sessions to create rogue accounts or exfiltrate data.

Affected products

• concretecms-community-store community_store: before 2.7.8 — fixed in 2.7.8

How to fix

Upgrade to a fixed version: concretecms-community-store community_store 2.7.8. Check the vendor advisory for mitigations.

References

• https://github.com/concretecms-community-store/community_store
• https://github.com/concretecms-community-store/community_store/blob/v2.7.7/elements/order_slip.php
• https://github.com/concretecms-community-store/community_store/commit/2a802d6a5717f4e351ef21fdf8bdaf8061c40109
• https://github.com/concretecms-community-store/community_store/releases/tag/v2.7.8
• https://www.vulncheck.com/advisories/concrete-cms-community-store-before-2.7.8-stored-xss

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