XSS in Elementor Website Builder
CVE-2021-24206
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (53.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Elementor Website Builder
- Elementor Website Builder — versions 3.1.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/blog/2021/03/cross-site-scripting-vulnerabilities-in-elemento… (Exploit, Third Party Advisory)
- wpscan.com/vulnerability/2f66efd9-7d55-4f33-9109-3cb583a0c309 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-24206?
- CVE-2021-24206 is a medium-severity vulnerability in Elementor Website Builder, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-04-05.
- How severe is CVE-2021-24206?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2021-24206 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.