CVE-2021-39608 in the critical feed json
Remote Code Execution (RCE) vulnerabilty exists in FlatCore-CMS 2.0.7 via the upload addon plugin, which could let a remote malicious user…
published 2021-08-23 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25965
- cvss
- 7.2
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 45.9%
- EPSS 45.9% chance of exploitation in 30 days, percentile 98%
- public exploits
- 1
- Exploit-DB
Summary
Remote Code Execution (RCE) vulnerabilty exists in FlatCore-CMS 2.0.7 via the upload addon plugin, which could let a remote malicious user exeuct arbitrary php code.
Timeline
- Published
- First public exploit (EDB-50262)
Exploit prediction
45.95% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-50262 FlatCore CMS 2.0.7 - Remote Code Execution (RCE) (Authenticated) webapps, 2021-09-06
- github.com https://github.com/flatCore/flatCore-CMS/issues/52 referenced PoC, tagged "exploit" by a source, unverified
- packetstormsecurity.com http://packetstormsecurity.com/files/164047/FlatCore-CMS-2.0.7-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
-
github.com
/flatCore/flatCore-CMS/issues/52
exploit, third-party-advisory
-
packetstormsecurity.com
/files/164047/FlatCore-CMS-2.0.7-Remote-Code-Execution.html
exploit, third-party-advisory, vdb-entry
Sources
- CVE List CVE-2021-39608
- NVD CVE-2021-39608
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