XSS in Addtoany Share Buttons
CVE-2021-24568
The AddToAny Share Buttons WordPress plugin before 1.7.46 does not sanitise its Sharing Header setting when outputting it in frontend pages, allowing high privilege users such as admin to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.006 (47.0th percentile) — read the EPSS interpretation.
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.
Affected products
- Addtoany Addtoany_share_buttons
- Unknown Addtoany Share Buttons — versions 1.7.46
Weakness classification (CWE)
Public proof-of-concept exploits
References
- contact@wpscan.com (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-24568?
- CVE-2021-24568 is a medium-severity vulnerability in Addtoany Share Buttons, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-09-06.
- How severe is CVE-2021-24568?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2021-24568 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.