PatchTheCVECVE-2021-24155: The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the i
CVE-2021-24155 is a high-severity flaw (CVSS 7.2) affecting backup guard. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
- EPSS top 1%: very likely to be exploited
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.2 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 84.1% (top 1%) |
| CISA exploited list | No |
| Weakness | CWE-434 |
| Published | 2021-04-05 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Exploit-DB: Wordpress Plugin Backup Guard 1.5.8 - Remote Code Execution (Authenticated)
- Metasploit: Wordpress Plugin Backup Guard - Authenticated Remote Code Execution
- Nuclei scan template: WordPress BackupGuard <1.6.0 - Authenticated Arbitrary File Upload
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-24155?
backup guard: upgrade to 1.6.0. Exact commands for each OS are on this page.
Is CVE-2021-24155 being exploited?
CVE-2021-24155 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-24155 affect?
CVE-2021-24155 affects backup guard. Severity is high (CVSS 7.2). 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 PH
How urgent is CVE-2021-24155?
Priority 55/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference
Software pages
WordPress vulnerabilities · PHP vulnerabilities
Related CVEs
- CVE-2017-18488 MEDIUM 6.1 UPGRADE The Backup Guard plugin before 1.1.47 for WordPress has multiple XSS issues.
- CVE-2017-10837 MEDIUM 6.1 UPGRADE Cross-site scripting vulnerability in BackupGuard prior to version 1.1.47 allows an attacker to inject arbitra