CVE-2020-20735
File Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary...
File Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary code via the ljcms/index.php parameter.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
File Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary code via the ljcms/index.php parameter.
- Record
CVE-2020-20735- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
CVE List
File Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary code via the ljcms/index.php parameter.
- Record
CVE-2020-20735- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
EUVDEUVD-2020-13515
File Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary code via the ljcms/index.php parameter.
- Record
EUVD-2020-13515- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f2fm-6xq7-v8j8
File Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary...
File Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary code via the ljcms/index.php parameter.
- Record
GHSA-f2fm-6xq7-v8j8- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-20735 is a critical vulnerability (CVSS 9.8) in 8cms Ljcms, published June 20, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.05%, the 64th percentile. No source names a fixed version.