Medium severity · published Jan 24, 2022
CVE-2021-24423
UpdraftPlus < 1.16.59 - Admin+ Stored Cross-Site Scripting
4.8
CVSS
0.6%
EPSS
No
On KEV
Description
The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.6.59 does not sanitise its updraft_service settings, allowing high privilege users to set malicious JavaScript payload in it and leading to a Stored Cross-Site Scripting issue
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UW
UpdraftPlus WordPress Backup Plugin ·
1.6.59 before 1.6.59 · source: vendor
UP
Updraftplus · Updraftplus
before 1.16.59 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-24423
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-24423
m0ze.ru
https://m0ze.ru/vulnerability/%5B2021-05-09%5D-%5BWordPress%5D-%5BCWE-79%5D-UpdraftPlus-WordPress-Plugin-v1.16.56.txt
Exploit
https://wpscan.com/vulnerability/541974d6-2df8-4497-9aee-afd3b9024102
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