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 dashboard, which is output in an attribute without being escaped first.
Does this matter?
Lower severity and a low EPSS score (1.91%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.91% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- boldgrid/w3 total cache
- Source
- contact@wpscan.com
References
- https://wpscan.com/vulnerability/05988ebb-7378-4a3a-9d2d-30f8f58fe9efExploit, Third Party Advisory
- https://wpscan.com/vulnerability/05988ebb-7378-4a3a-9d2d-30f8f58fe9efExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.