CVE-2023-28476 json
Stored cross site scripting on tags
published 2023-04-28 3 y ago modified 2026-09-10 1 mo ago also GHSA-2ggc-552c-rmqr , EUVD-2023-1156
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
Concrete CMS (previously concrete5) in versions 9.0 through 9.1.3 is vulnerable to Stored XSS on Tags on uploaded files.
Patch / fix
- packagist concrete5/concrete5 9.2.0
- concretecms concrete_cms 9.2.0
Exploit prediction
0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | concrete5/concrete5 | <9.2.0 |
9.2.0 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
concretecms.org
/about/project-news/security/concrete-cms-security-advisory-2023-04-20
web, vendor-advisory
-
concretecms.com
web, product
-
concretecms.org
/about/project-news/security/2023-12-05-concrete-cms-new-cves-and-cve-updates
web
-
nvd.nist.gov
/vuln/detail/CVE-2023-28476
advisory
-
github.com
/concretecms/concretecms
package
Sources
- CVE List CVE-2023-28476
- GitHub Advisory GHSA-2ggc-552c-rmqr
- NVD CVE-2023-28476
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.