CVE-2026-8353

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Source
https://cve.org/CVERecord?id=CVE-2026-8353
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-8353.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-8353
Aliases
Published
2026-05-22T14:18:06.991Z
Modified
2026-07-15T01:49:06.908699448Z
Severity
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in atomik theme
Details

Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in the Atomik theme. A rogue editor can inject arbitrary JavaScript that executes in the context of any authenticated user visiting the affected account pages. This can lead to session hijacking, credential theft, malicious actions performed on behalf of users, and potential privilege escalation. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.1 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori (Tenzai) for reporting.

Database specific 
{
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8353.json",
    "cna_assigner": "ConcreteCMS"
}
References

Affected packages

Git / github.com/concretecms/concretecms

Affected ranges

Type
GIT
Repo
https://github.com/concretecms/concretecms
Events
Introduced
b3774abddd475b4ba98b637402506f7a5ebd90ea
Fixed
92bae566b9ec573cfb3017fcbb6db454a6586997
Database specific 
{
    "cpe": "cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "9.0"
        },
        {
            "last_affected": "9.5.0"
        },
        {
            "fixed": "9.5.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-8353.json"