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. 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 v3.1

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS

1.91% chance of exploitation in the next 30 days, 78th percentile

Nuclei

medium · CWE-79

Published

2021-07-19

Updated

2024-08-03

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/05988ebb-7378-4a3a-9d2d-30f8f58fe9ef

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24436.yaml

References

• CVE Record
• NVD entry

Related

• CVE-2021-24435
• CVE-2021-24437
• CVE-2021-24434
• CVE-2021-24438
• CVE-2021-24433
• CVE-2021-24439