← Vulnerability feed

Vulnerability record · CVE-2020-21585 · published 2 April 2021

CVE-2020-21585: Emlog unrestricted file upload vulnerability

Emlog · Emlog

Vulnerability in emlog v6.0.0 allows user to upload webshells via zip plugin module.

9.8 CVSS 3.1 Critical EPSS 3.2% · top 12.4% CWE-434 · Unrestricted file upload
9.8CVSS 3.1 base score, v2 7.5
3.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

Vulnerability in emlog v6.0.0 allows user to upload webshells via zip plugin module.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/emlog/emlog/issues/54 ExploitThird Party Advisory
https://github.com/pwnninja/emlog/issues/1 ExploitThird Party Advisory
https://github.com/emlog/emlog/issues/54 ExploitThird Party Advisory
https://github.com/pwnninja/emlog/issues/1 ExploitThird Party Advisory

Track CVE-2020-21585 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-29401Emlog code injection vulnerabilityAn arbitrary file upload vulnerability in the component /views/plugin.php of emlog pro v2.5.7 allows attackers to execute arbitrary code via uploadin…EPSS 0.77%9.8CVE-2025-25783Emlog unrestricted file upload vulnerabilityAn arbitrary file upload vulnerability in the component admin\plugin.php of Emlog Pro v2.5.3 allows attackers to execute arbitrary code via uploading…EPSS 0.71%9.8CVE-2023-44973Emlog unrestricted file upload vulnerabilityAn arbitrary file upload vulnerability in the component /content/templates/ of Emlog Pro v2.2.0 allows attackers to execute arbitrary code via upload…EPSS 1.0%9.8CVE-2023-44974Emlog unrestricted file upload vulnerabilityAn arbitrary file upload vulnerability in the component /admin/plugin.php of Emlog Pro v2.2.0 allows attackers to execute arbitrary code via uploadin…EPSS 19%9.8CVE-2023-43291Emlog deserialization of untrusted data vulnerabilityDeserialization of Untrusted Data in emlog pro v.2.1.15 and earlier allows a remote attacker to execute arbitrary code via the cache.php component.EPSS 1.6%9.8CVE-2022-23379Emlog sql injection vulnerabilityEmlog v6.0 was discovered to contain a SQL injection vulnerability via the $TagID parameter of getblogidsfromtagid().EPSS 1.4%9.8CVE-2021-40883Emlog unrestricted file upload vulnerabilityA Remote Code Execution (RCE) vulnerability exists in emlog 5.3.1 via content/plugins.EPSS 3.0%9.8CVE-2021-31737Emlog unrestricted file upload vulnerabilityemlog v5.3.1 and emlog v6.0.0 have a Remote Code Execution vulnerability due to upload of database backup file in admin/data.php.EPSS 3.9%

Source: NIST National Vulnerability Database (record CVE-2020-21585), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.