CVE-2021-24155
Backup Guard < 1.6.0 - Authenticated Arbitrary File Upload
The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE.
- Record
CVE-2021-24155- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-434
- Updated
- 2026-11-02
CVE List No score
Backup Guard < 1.6.0 - Authenticated Arbitrary File Upload
The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE.
- Record
CVE-2021-24155- Weakness
- CWE-434
- Updated
- 2026-11-02
EUVDEUVD-2021-11069 No score
The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE.
- Record
EUVD-2021-11069- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h635-5m37-x3p5 No score
The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not...
The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE.
- Record
GHSA-h635-5m37-x3p5- Weakness
- CWE-434
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Wordpress Plugin Backup Guard 1.5.8 - Remote Code Execution (Authenticated) | 2021-07-05 |
| Metasploit | Wordpress Plugin Backup Guard - Authenticated Remote Code Execution | 2021-05-04 |
| Nuclei | WordPress BackupGuard <1.6.0 - Authenticated Arbitrary File Upload | |
| PoC in GitHub | 0dayNinja/CVE-2021-24155.rb | 2021-07-30 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Metasploit, Nuclei, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24155 is a high vulnerability (CVSS 7.2) in Backup-guard Backup Guard, published April 5, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 84.1%, the 99th percentile. No source names a fixed version.
References
wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb
packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html
nvd.nist.gov/vuln/detail/CVE-2021-24155
github.com/advisories/GHSA-h635-5m37-x3p5