CVE-2021-27670

CRITICALNuclei

appspace appspace Server-Side Request Forgery (SSRF)

Title source: VulnCheck
STIX 2.1 vulnerability

Record summary

CVE-2021-27670 has a selected CVSS score of 9.8 (critical); EIP currently links 1 Nuclei template.

Description

Appspace 6.2.4 allows SSRF via the api/v1/core/proxy/jsonprequest url parameter.

Description source: CVE List

Exploitation context

Known exploitation

VulnCheck KEV
Listed · Jan 21, 2026 · VulnCheck
Reported exploitation
Observed · VulnCheck

Available material

Nuclei templates
1

Affected products and versions

1
ProductSourceVersion range

appspace

Browse appspace / appspace
VulnCheckVersion data not supplied

Nuclei templates

1
ProjectDiscoveryCRITICALAppspace 6.2.4 - Server-Side Request ForgeryCVSS 9.8

Appspace 6.2.4 allows SSRF via the api/v1/core/proxy/jsonprequest url parameter.

Impact

Successful exploitation of this vulnerability can lead to unauthorized access to internal resources, data leakage, and potential remote code execution.

Remediation

Upgrade to a patched version of Appspace 6.2.4 or apply the necessary security patches provided by the vendor.

WeaknessesCWE-918
Authorsritikchaddha
Template tagscvecve2021appspacessrfvulnvkev
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CPE: cpe:2.3:a:appspace:appspace:6.2.4:*:*:*:*:*:*:*
Shodan: title:"Appspace"
Shodan: http.title:"appspace"
FOFA: title="appspace"
Google: intitle:"appspace"
https://github.com/h3110mb/PoCSSrfApp https://nvd.nist.gov/vuln/detail/CVE-2021-27670 https://github.com/ArrestX/--POC https://github.com/KayCHENvip/vulnerability-poc https://github.com/Miraitowa70/POC-Notes

Source: ProjectDiscovery

References

2