XSS in Bitorbit Wpbakery Page Builder (Visual Composer) Clipboard
CVE-2021-24243
An AJAX action registered by the WPBakery Page Builder (Visual Composer) Clipboard WordPress plugin before 4.5.6 did not have capability checks nor sanitization, allowing low privilege users (subscriber+) to call it and set XSS payloads, which will be triggered in all backend pages.
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 (51.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.5% 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
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wpscan.com/vulnerability/3bc0733a-b949-40c9-a5fb-f56814fc4af3 (Exploit, Third Party Advisory)
- codecanyon.net/item/visual-composer-clipboard/8897711 (Product, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-24243?
- CVE-2021-24243 is a medium-severity vulnerability in Bitorbit Wpbakery Page Builder (Visual Composer) Clipboard, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-05-06.
- How severe is CVE-2021-24243?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2021-24243 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.