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Case File

CVE-2021-28998

HIGH · CVSS 7.2 EPSS 1.29% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-05-08 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.2. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable. Exploitation may require the attacker to be authenticated.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-28998
Severity
HIGH
CVSS
7.2
EPSS
1.29%

Original NVD Description

File upload vulnerability in CMS Made Simple through 2.2.15 allows remote authenticated attackers to gain a webshell via a crafted phar file.

Related CVEs

Other vulnerabilities affecting the same vendor(s)