CVE-2021-22958

2021-10-0713:35:02

CWE-918

hackerone

www.cve.org

server-side request forgery

concrete5

decimal notation

ip address

localhost

local services

vulnerability

cve-2021-22958

cvssv2.0

AI Score

9.2

Confidence

High

EPSS

0.002

Percentile

58.7%

JSON

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

CNA Affected

[
  {
    "product": "https://github.com/concrete5/concrete5",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Fixed in 8.5.5"
      }
    ]
  }
]