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Fencer Vulns
high 7.2

CVE-2021-24155 in the critical feed json

Backup Guard < 1.6.0 - Authenticated Arbitrary File Upload

published 2021-04-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11069

cvss
7.2
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
84.1%
EPSS 84.1% chance of exploitation in 30 days, percentile 99.6%
public exploits
2
Metasploit, Exploit-DB, plus a Nuclei check

Summary

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.

Patch / fix

  • backup-guard backup_guard 1.6.0

Timeline

  1. Published
  2. First public exploit (Metasploit exploit/multi/http/wp_plugin_backup_guard_rce)

Exploit prediction

84.11% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/multi/http/wp_plugin_backup_guard_rce Wordpress Plugin Backup Guard - Authenticated Remote Code Execution metasploit exploit, excellent rank, 2021-05-04
  • EDB-50093 Wordpress Plugin Backup Guard 1.5.8 - Remote Code Execution (Authenticated) webapps, 2021-07-05
  • Nuclei template WordPress BackupGuard <1.6.0 - Authenticated Arbitrary File Upload nuclei detection template
  • wpscan.com https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • Unknown WordPress Backup and Migrate Plugin – Backup Guard

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.