Medium severity · published Nov 19, 2021
CVE-2021-36884
WordPress Backup Migration plugin <= 1.1.5 - Authenticated Persistent Cross-Site Scripting (XSS) vulnerability
5.4
CVSS
0.6%
EPSS
No
On KEV
Description
Authenticated Persistent Cross-Site Scripting (XSS) vulnerability discovered in WordPress Backup Migration plugin <= 1.1.5 versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BM
Backup Migration (WordPress plugin) · Backupbliss
<= 1.1.5 through 1.1.5 · source: vendor
BM
Backup Migration · Backupbliss
through 1.1.5 · source: NVD
Affected product
BM
Backup Migration (WordPress plugin)
Backupbliss
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-36884
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-36884
Patch
https://patchstack.com/database/vulnerability/backup-backup/wordpress-backup-migration-plugin-1-1-5-authenticated-persistent-cross-site-scripting-xss-vulnerability
Third Party Advisory
https://wordpress.org/plugins/backup-backup/#developers