CVE-2021-27670 in the critical feed json
Appspace 6.2.4 allows SSRF via the api/v1/core/proxy/jsonprequest url parameter.
published 2021-02-25 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14416
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 61.3%
- EPSS 61.3% chance of exploitation in 30 days, percentile 99.1%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
Appspace 6.2.4 allows SSRF via the api/v1/core/proxy/jsonprequest url parameter.
Exploit prediction
61.27% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Appspace 6.2.4 - Server-Side Request Forgery nuclei detection template
- github.com https://github.com/h3110mb/PoCSSrfApp referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/h3110mb/PoCSSrfApp
exploit, third-party-advisory
Sources
- CVE List CVE-2021-27670
- NVD CVE-2021-27670
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.