XSS in Terryl Wp Shieldon

CVE-2021-24124

Unvalidated input and lack of output encoding in the WP Shieldon WordPress plugin, version 1.6.3 and below, leads to Unauthenticated Reflected Cross-Site Scripting (XSS) when the CAPTCHA page is shown could lead to privileged escalation.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.011 (63.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-24124?
CVE-2021-24124 is a medium-severity vulnerability in Terryl Wp Shieldon, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-03-18.
How severe is CVE-2021-24124?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2021-24124 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.