CVE-2020-21786
CVE-2020-21786 is a critical-severity vulnerability in Ibos with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 1% (62nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: Ibos
- Published:
- Last modified:
Description
In IBOS 4.5.4 Open, Arbitrary File Inclusion causes getshell via /system/modules/dashboard/controllers/CronController.php.
Frequently asked questions
- What is CVE-2020-21786?
- In IBOS 4.5.4 Open, Arbitrary File Inclusion causes getshell via /system/modules/dashboard/controllers/CronController.php.
- How severe is CVE-2020-21786?
- CVE-2020-21786 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-21786 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-21786?
- CVE-2020-21786 affects Ibos. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-21786?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-21786 published?
- CVE-2020-21786 was published on 2021-06-24 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ibos:ibos:4.5.4:*:*:*:*:*:*:*
More vulnerabilities in Ibos
- CVE-2024-28265 — Critical (CVSS 9.1): IBOS v4.5.5 has an arbitrary file deletion vulnerability via \system\modules\dashboard\controllers\LoginController.php.
- CVE-2020-21785 — High (CVSS 8.8): In IBOS 4.5.4 Open, the database backup has Command Injection Vulnerability.
- CVE-2023-4852 — Medium (CVSS 6.3): A vulnerability was found in IBOS OA 4.5.5 and classified as critical. This issue affects some unknown processing of…
- CVE-2023-4851 — Medium (CVSS 6.3): A vulnerability has been found in IBOS OA 4.5.5 and classified as critical. This vulnerability affects unknown code of…
- CVE-2023-4850 — Medium (CVSS 6.3): A vulnerability, which was classified as critical, was found in IBOS OA 4.5.5. This affects an unknown part of the file…
- CVE-2023-4849 — Medium (CVSS 6.3): A vulnerability, which was classified as critical, has been found in IBOS OA 4.5.5. Affected by this issue is some…
Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities
- CVE-2026-48283 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
- CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
- CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
- CVE-2025-69129 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in WordPress & WooCommerce Scraper Plugin, Import Data from Any Site <= 1.0.7…
- CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
- CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…
Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →