CVE-2021-24206

Description

In the Elementor Website Builder WordPress plugin before 3.1.4, the image box widget (includes/widgets/image-box.php) accepts a ‘title_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 containing JavaScript in the ‘title_size’ parameter, which is not filtered and is output without escaping. This JavaScript will then be executed when the saved page is viewed or previewed.

Related CPE's

aelementorwebsite_builder*****wordpress**
vulnerable

References

https://wpscan.com/vulnerability/2f66efd9-7d55-4f33-9109-3cb583a0c309

ExploitThird Party Advisory

https://www.wordfence.com/blog/2021/03/cross-site-scripting-vulnerabilities-in-elementor-impact-over-7-million-sites/

ExploitThird Party Advisory

CvssV3 impact

BaseSeverity

MEDIUM

ConfidentialityImpact

LOW

AttackComplexity

LOW

Scope

CHANGED

AttackVector

NETWORK

AvailabilityImpact

NONE

IntegrityImpact

LOW

PrivilegesRequired

LOW

BaseScore

5.4

VectorString

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

Version

3.1

UserInteraction

REQUIRED

CvssV2 impact

AccessComplexity

MEDIUM

ConfidentialityImpact

NONE

AvailabilityImpact

NONE

IntegrityImpact

PARTIAL

BaseScore

3.5

VectorString

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

Version

2.0

AccessVector

NETWORK

Authentication

SINGLE