CVE-2017-16920 json
v5/config/system.php in dayrui FineCms 5.2.0 has a default SYS_KEY value and does not require key regeneration for each installation, which…
published 2017-11-21 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-8090
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.1%
- EPSS 2.1% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
v5/config/system.php in dayrui FineCms 5.2.0 has a default SYS_KEY value and does not require key regeneration for each installation, which allows remote attackers to upload arbitrary .php files via a member api swfupload action to index.php.
Patch / fix
Exploit prediction
2.14% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/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 |
References
-
gitee.com
/dayrui/finecms/commit/ff4b7ad3c3fbd3245b3bb7bc774d20c9705d9882
patch, third-party-advisory
-
user-images.githubusercontent.com
/31153532/33065202-21b536f2-cee3-11e7-997a-c7d4f1b00ca7.jpg
third-party-advisory
Sources
- CVE List CVE-2017-16920
- NVD CVE-2017-16920
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.