Medium severity · published Jul 19, 2021
CVE-2021-24436
The W3 Total Cache WordPress plugin before 2.1.4 was vulnerable to a reflected Cross-Site Scripting (XSS) security vulnerability within the "extension" parameter in the Extensions…
6.1
CVSS
1.9%
EPSS
No
On KEV
Description
The W3 Total Cache WordPress plugin before 2.1.4 was vulnerable to a reflected Cross-Site Scripting (XSS) security vulnerability within the "extension" parameter in the Extensions dashboard, which is output in an attribute without being escaped first. This could allow an attacker, who can convince an authenticated admin into clicking a link, to run malicious JavaScript within the user's web browser, which could lead to full site compromise.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WT
W3 Total Cache · Boldgrid
before 2.1.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-24436
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-24436
Exploit
https://wpscan.com/vulnerability/05988ebb-7378-4a3a-9d2d-30f8f58fe9ef
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