Report: CVE-2026-34206 - Captcha Protect: Reflected XSS in challenge page via unsanitized destination ren

Report: CVE-2026-34206 - Captcha Protect: Reflected XSS in challenge page via unsanitized destination ren

CVE ID :CVE-2026-34206 Published : March 31, 2026, 7:34 p.m. | 40 minutes ago Description :Captcha Protect is a Traefik middleware to add an anti-bot challenge to individual IPs in a subnet when traffic spikes are detected from that subnet. Prior to version 1.12.2, a reflected cross-site scripting (XSS) vulnerability exists in github.com/libops/captcha-protect. The challenge page accepted a client-supplied destination value and rendered it into HTML using Go's text/template. Because text/template does not perform contextual HTML escaping, an attacker could supply a crafted destination value that breaks out of the hidden input attribute and injects arbitrary script into the challenge page. This issue has been patched in version 1.12.2. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Published
March 31, 2026
Affected Product: github
Impact: XSS