GHSA-45fj-fvmm-xcc5

Suggest an improvement
Source
https://github.com/advisories/GHSA-45fj-fvmm-xcc5
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-45fj-fvmm-xcc5/GHSA-45fj-fvmm-xcc5.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-45fj-fvmm-xcc5
Aliases
Published
2026-03-04T03:31:34Z
Modified
2026-03-04T21:48:34.165334Z
Severity
  • 4.8 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Concrete CMS has a stored Cross-site Scripting (XSS) vulnerability
Details

In Concrete CMS below version 9.4.8, a user with permission to edit a page with element Legacy form can perform a stored XSS attack towards high-privilege accounts via the Question field. 

The Concrete CMS security team thanks minhnn42, namdi and quanlna2 from VCSLab-Viettel Cyber Security for reporting.

Database specific
{
    "github_reviewed_at": "2026-03-04T21:36:26Z",
    "github_reviewed": true,
    "severity": "MODERATE",
    "nvd_published_at": "2026-03-04T03:16:04Z",
    "cwe_ids": [
        "CWE-79"
    ]
}
References

Affected packages

Packagist / concrete5/concrete5

Package

Name
concrete5/concrete5
Purl
pkg:composer/concrete5/concrete5

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
9.4.8

Affected versions

8.*
8.0
8.0.1
8.0.2
8.0.3
8.1.0
8.2.0RC2
8.2.0
8.2.1
8.3.0
8.3.1
8.3.2
8.4.0RC3
8.4.0RC4
8.4.0
8.4.1
8.4.2
8.4.3
8.4.4
8.4.5
8.5.0RC1
8.5.0RC2
8.5.0
8.5.1
8.5.2
8.5.3
8.5.4
8.5.5
8.5.6RC1
8.5.6
8.5.7
8.5.8
8.5.9
8.5.10
8.5.11
8.5.12
8.5.13
8.5.14
8.5.15
8.5.16
8.5.17
8.5.18
8.5.19
8.5.20
8.5.21
9.*
9.0.0RC1
9.0.0RC3
9.0.0RC4
9.0.0
9.0.1
9.0.2
9.1.0
9.1.1
9.1.2
9.1.3
9.2.0RC2
9.2.0
9.2.1
9.2.2
9.2.3
9.2.4
9.2.5
9.2.6
9.2.7
9.2.8
9.2.9
9.3.0
9.3.1
9.3.2
9.3.3
9.3.4
9.3.5
9.3.6
9.3.7
9.3.8
9.3.9
9.4.0RC1
9.4.0RC2
9.4.0
9.4.1
9.4.2
9.4.3
9.4.4
9.4.5
9.4.6
9.4.7

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-45fj-fvmm-xcc5/GHSA-45fj-fvmm-xcc5.json"