Vulnerability Monitor

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CVE-2021-24202

In the Elementor Website Builder WordPress plugin before 3.1.4, the heading widget (includes/widgets/heading.php) accepts a ‘header_size’ parameter. Although the element control lists a fixed set of possible html tags, it is possible for a user with Contributor or above permissions to send a modified ‘save_builder’ request with this parameter set to ‘script’ and combined with a ‘title’ parameter containing JavaScript, which will then be executed when the saved page is viewed or previewed.

Published

2021-04-05T19:15:16.953

Last Modified

2024-11-21T05:52:35.087

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.4 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:S/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: SINGLE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

6.8

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-79
Type: Primary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	elementor	website_builder	< 3.1.4	Yes

References

https://wpscan.com/vulnerability/b72bd13d-c8e2-4347-b009-542fc0fe21bb Exploit, Third Party Advisory ([email protected])
https://www.wordfence.com/blog/2021/03/cross-site-scripting-vulnerabilities-in-elementor-impact-over-7-million-sites/ Exploit, Third Party Advisory ([email protected])
https://wpscan.com/vulnerability/b72bd13d-c8e2-4347-b009-542fc0fe21bb Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.wordfence.com/blog/2021/03/cross-site-scripting-vulnerabilities-in-elementor-impact-over-7-million-sites/ Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)