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2 vulnerabilities by libops
CVE-2026-34206 (GCVE-0-2026-34206)
Vulnerability from nvd – Published: 2026-03-31 19:34 – Updated: 2026-04-01 18:41
VLAI
EPSS
VEX
Title
Captcha Protect: Reflected XSS in challenge page via unsanitized destination rendered with text/template
Summary
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
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/libops/captcha-protect/securit… | x_refsource_CONFIRM |
| https://github.com/libops/captcha-protect/commit/… | x_refsource_MISC |
| https://github.com/libops/captcha-protect/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| libops | captcha-protect |
Affected:
< 1.12.2
|
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CVE-2026-34206 (GCVE-0-2026-34206)
Vulnerability from cvelistv5 – Published: 2026-03-31 19:34 – Updated: 2026-04-01 18:41
VLAI
EPSS
VEX
Title
Captcha Protect: Reflected XSS in challenge page via unsanitized destination rendered with text/template
Summary
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
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/libops/captcha-protect/securit… | x_refsource_CONFIRM |
| https://github.com/libops/captcha-protect/commit/… | x_refsource_MISC |
| https://github.com/libops/captcha-protect/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| libops | captcha-protect |
Affected:
< 1.12.2
|
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"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
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"vendor": "libops",
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}
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