CVE-2020-5553
mailform version 1.04 allows remote attackers to execute arbitrary PHP code via unspecified vectors.
mailform version 1.04 allows remote attackers to execute arbitrary PHP code via unspecified vectors.
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
mailform version 1.04 allows remote attackers to execute arbitrary PHP code via unspecified vectors.
- Record
CVE-2020-5553- 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 - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-94
- Updated
- 2026-11-02
CVE List No score
mailform version 1.04 allows remote attackers to execute arbitrary PHP code via unspecified vectors.
- Record
CVE-2020-5553- Updated
- 2026-11-02
EUVDEUVD-2020-26715 No score
mailform version 1.04 allows remote attackers to execute arbitrary PHP code via unspecified vectors.
- Record
EUVD-2020-26715- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-48xv-vxf2-m8qm No score
mailform version 1.04 allows remote attackers to execute arbitrary PHP code via unspecified vectors.
mailform version 1.04 allows remote attackers to execute arbitrary PHP code via unspecified vectors.
- Record
GHSA-48xv-vxf2-m8qm- 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-2020-5553 is a critical vulnerability (CVSS 9.8) in Keitai-site.net Mailform, published March 25, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.27%, the 83rd percentile. No source names a fixed version.