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VulnerabilityPublished Updated

CVE-2026-93659: community_store · Cross-site Scripting

Affects community_storeSource CVE Database V5

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Not known to be exploited · CVSS 8.6 High : upgrade to 2.7.8 soon.

Data as of 2 Nov 2026, 10:58 UTC

CVSS 4.0 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.7.8
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.

What to do

Upgrade community_store and concretecms-community-store/community_store to 2.7.8.

Affected software

ProductAffectedFixed in
concretecms-community-storecommunity_storeAffected
  • <2.7.8
Fixed in
  • 2.7.8
Packagistconcretecms-community-store/community_storepkg:composer/concretecms-community-store/community_storeOther threatsAffected
  • <2.7.8
Fixed in
  • 2.7.8

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fixed version 2.7.8 of Concrete CMS Community Store is available that addresses this vulnerability by properly escaping customer-supplied input. Users should upgrade to version 2.7.8 or later to remediate this issue. No additional mitigation steps are indicated.

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.

References

Community reviews

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