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.
Does this matter?
Lower severity and a low EPSS score (1.15%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.15% probability · 67th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- terryl/wp shieldon
- Source
- contact@wpscan.com
EPSS 1.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://wpscan.com/vulnerability/8d0eb0b4-0cc0-44e5-b720-90b01df3a6eeExploit, Third Party Advisory
- https://wpscan.com/vulnerability/8d0eb0b4-0cc0-44e5-b720-90b01df3a6eeExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.