Concrete CMS version 9 below 9.2.8 and previous versions below 8.5.16 is vulnerable to Stored XSS in blocks of type file. Stored XSS could be caused by a rogue administrator adding malicious code to the link-text field when creating a block of type file. The Concrete CMS security team gave this vulnerability a CVSS v3.1 score of 3.1 with a vector of AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator . Thanks Alexey Solovyev for reporting.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| concrete5/concrete5(Packagist) | 9.0.0RC1 | 9.2.8 | N/A |
| concrete5/concrete5(Packagist) | 0 | 8.5.16 | N/A |
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