CVE-2021-24124

6.1 mediumEPSS 1.1%

Medium (6.1) in terryl wp shieldon. EPSS 1.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

6.1 medium

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

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-03-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

terryl:wp_shieldon

References

https://wpscan.com/vulnerability/8d0eb0b4-0cc0-44e5-b720-90b01df3a6ee
https://wpscan.com/vulnerability/8d0eb0b4-0cc0-44e5-b720-90b01df3a6ee

Check your stack JSON