Vulnerability · Published Feb 3, 2026 · Assigned by VulnCheck
CVE-2020-37071CraftCMS 3 vCard Plugin 1.0.0 - Remote Code Execution
Critical 9.8
In plain English
A critical-severity unsafe deserialization in CraftCMS from CraftCMS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.7%top 45.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
CraftCMS 3 vCard Plugin 1.0.0 contains a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary PHP code through a crafted payload. Attackers can generate a malicious serialized payload that triggers remote code execution by exploiting the plugin's vCard download functionality with a specially crafted request.
Affected products (as reported)
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- ExploitDB-48492 exploit
- Official CraftCMS Vendor Homepage product
- CraftCMS vCard Plugin Page product
- Researcher Exploit Disclosure technical-description, exploit
- VulnCheck Advisory: CraftCMS 3 vCard Plugin 1.0.0 - Remote Code Execution third-party-advisory