GHSA-2xp7-rpvc-pjwc

Source

https://github.com/advisories/GHSA-2xp7-rpvc-pjwc

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-2xp7-rpvc-pjwc/GHSA-2xp7-rpvc-pjwc.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-2xp7-rpvc-pjwc

Aliases

CVE-2026-8239

Published

2026-05-22T00:31:16Z

Modified

2026-09-10T03:51:04Z

Severity

6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

Concrete CMS is vulnerable to IDOR

Details

Concrete CMS 9.5.0 and below is vulnerable to IDOR. The '/ccm/frontend/conversations/get_rating' endpoint confirms existence and returns rating score for any message by ID.

Database specific

{
    "cwe_ids":  [
        "CWE-862"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-06-24T21:08:44Z",
    "nvd_published_at":  "2026-05-21T22:16:50Z",
    "severity":  "MODERATE"
}

References

Affected packages

Packagist / concrete5/concrete5

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

9.5.1

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

9.4.8

9.5.0RC1

9.5.0RC2

9.5.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-2xp7-rpvc-pjwc/GHSA-2xp7-rpvc-pjwc.json"