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Medium severity5.4NVD Advisory· Published May 21, 2026· Updated May 26, 2026

CVE-2026-8245

CVE-2026-8245

Description

Concrete CMS 9.5.0 and below is vulnerable to Reflected XSS in Legacy Pagination via HTML attribute injection. Concrete\Core\Legacy\Pagination builds pagination links by raw-interpolating its $URL field into href="" (). Any authenticated admin or report viewer with access to /dashboard/reports/forms/legacy who clicks the crafted URL fires the payload in their session. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.0 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori (Tenzai) for reporting

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
concrete5/concrete5Packagist
< 9.5.19.5.1

Affected products

3
  • Concrete5/Concrete5inferred3 versions
    <=9.5.0+ 2 more
    • (no CPE)range: <=9.5.0
    • cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*range: <9.5.1
    • (no CPE)range: <=9.5.0

Patches

Vulnerability mechanics

References

3

News mentions

1