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CVE-2021-47979

HIGHCVSS 8.7/10EPSS 0.40%

Last modified

CVE-2021-47979 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. WordPress Plugin Backup and Restore 1.0.3 contains an arbitrary file deletion vulnerability that allows authenticated attackers to delete files by manipulating parameters in AJAX requests. Attackers can send POST requests to admin-ajax.php with crafted file_name and folder_name parameters to delete arbitrary files from the WordPress installation directory.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

WordPress Plugin Backup and Restore 1.0.3 contains an arbitrary file deletion vulnerability that allows authenticated attackers to delete files by manipulating parameters in AJAX requests. Attackers can send POST requests to admin-ajax.php with crafted file_name and folder_name parameters to delete arbitrary files from the WordPress installation directory.

Metrics

CVSS 3.1
8.8/10

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

CVSS 4.0
8.7/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability
0.40%

31.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2021-47979?
WordPress Plugin Backup and Restore 1.0.3 contains an arbitrary file deletion vulnerability that allows authenticated attackers to delete files by manipulating parameters in AJAX requests. Attackers can send POST requests to admin-ajax.php with crafted file_name and folder_name parameters to delete arbitrary files from the WordPress installation directory.
How severe is CVE-2021-47979?
CVE-2021-47979 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.
How do I fix CVE-2021-47979?
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-2021-47979?

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

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Source: NVD / NIST