CVE-2021-22958
Critical
Description
A Server-Side Request Forgery vulnerability was found in concrete5 < 8.5.5 that allowed a decimal notation encoded IP address to bypass the limitations in place for localhost allowing interaction with local services. Impact can vary depending on services exposed.CVSSv2.0 AV:A/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
SeverityCritical
CVSS9.8
Exploit probability—
Product
Concretecms Concrete Cms
PublishedOct 7, 2021
First seenOct 7, 2021
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Update
- concretecms concrete_cms8.5.5 or later
- concrete5/concrete58.5.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| concretecms concrete_cms | v < 8.5.5 | 8.5.5 |
| concrete5/concrete5Packagist | v < 8.5.5 | 8.5.5 |
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