In IBOS 4.5.4 Open, Arbitrary File Inclusion causes getshell via /system/modules/dashboard/controllers/CronController.php.

published 2021-06-24 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-14554

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits: 0; none known

Exploit prediction

1.12% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

gitee.com https://gitee.com/ibos/IBOS/issues/I18JRG 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-434 Unrestricted Upload of File with Dangerous Type

References

gitee.com /ibos/IBOS/issues/I18JRG
exploit, issue-tracking, third-party-advisory

Sources

CVE List CVE-2020-21786
NVD CVE-2020-21786

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.

Summary