CVE-2021-24155
HighPublic exploitThe 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.
Published Apr 5, 2021 · Updated Nov 21, 2024 · Also known as 01e8e53c-8d23-4bd3-9291-29f97df7c984
Key Facts
Patch immediately- CVE-2021-24155 is a high-severity vulnerability (CVSS 7.2 v3.1) affecting Backup Guard (Backup-Guard), backup (wordpress-plugin), WordPress Backup and Migrate Plugin – Backup Guard.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 84% probability of exploitation in the next 30 days.
- Fixed versions are available, including backup 1.6.0, Backup Guard 1.6.0, WordPress Backup and Migrate Plugin – Backup Guard 1.6.0.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
84%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2021-24155 brief as a PDF
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Description
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.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Backup GuardBackup-Guard | See advisory | 1.6.0 |
| backupwordpress-plugin | See advisory | 1.6.0 |
| WordPress Backup and Migrate Plugin – Backup Guard | >= 1.6.0 | 1.6.0 |
Patched Releases
backup
1.6.0
Backup Guard
1.6.0
WordPress Backup and Migrate Plugin – Backup Guard
1.6.0
Timeline
Publicly disclosed
Apr 5, 2021
Last updated
Nov 21, 2024
Weakness Type
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/01e8e53c-8d23-4bd3-9291-29f97df7c984?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/01e8e53c-8d23-4bd3-9291-29f97df7c984?source=api-scan
- exploithttp://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html
- exploithttp://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.html
- exploitMSF wp_plugin_backup_guard_rce.rb
FAQ
Common Questions.
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.
Affected: Backup Guard (Backup-Guard); backup (wordpress-plugin); WordPress Backup and Migrate Plugin – Backup Guard versions >= 1.6.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including backup 1.6.0, Backup Guard 1.6.0, WordPress Backup and Migrate Plugin – Backup Guard 1.6.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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