CVE-2021-28060 json
A Server-Side Request Forgery (SSRF) vulnerability in Group Office 6.4.196 allows a remote attacker to forge GET requests to arbitrary URLs…
published 2021-04-14 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14766
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
A Server-Side Request Forgery (SSRF) vulnerability in Group Office 6.4.196 allows a remote attacker to forge GET requests to arbitrary URLs via the url parameter to group/api/upload.php.
Exploit prediction
1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- fatihhcelik.blogspot.com https://fatihhcelik.blogspot.com/2020/12/group-office-crm-ssrf.html referenced PoC, tagged "exploit" by a source, unverified
- fatihhcelik.github.io https://fatihhcelik.github.io/posts/Group-Office-CRM-SSRF/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
fatihhcelik.blogspot.com
/2020/12/group-office-crm-ssrf.html
exploit, third-party-advisory
-
fatihhcelik.github.io
/posts/Group-Office-CRM-SSRF/
exploit, third-party-advisory
Sources
- CVE List CVE-2021-28060
- NVD CVE-2021-28060
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.