CVE-2021-24155

Name: CVE-2021-24155
Creator: NVD / NIST
Published: 2021-04-05T19:15:14.7+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 83.69%

Last modified Jun 17, 2026

CVE-2021-24155 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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.. EPSS estimates a 83.69% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

83.69%

99.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Backup-Guard	Backup Guard	< 1.6.0

References

http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fbExploit, Third Party Advisory
http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fbExploit, Third Party Advisory

Timeline

Published: Apr 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24155?

How severe is CVE-2021-24155?

CVE-2021-24155 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 83.69% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24155?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-24155?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST