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2 vulnerabilities found for Simple CAPTCHA with Cloudflare Turnstile by Unknown
CVE-2026-15239 (GCVE-0-2026-15239)
Vulnerability from nvd – Published: 2026-08-07 07:25 – Updated: 2026-08-07 15:19
VLAI
EPSS
VEX
Title
Simple CAPTCHA with Cloudflare Turnstile < 1.42.0 - Unauthenticated Turnstile Protection Bypass via Reusable Forminator Cache Key
Summary
The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin before 1.42.0 does not bind its Turnstile validation cache to the single-use challenge token in its Forminator integration, instead keying it to an attacker-controlled, reusable request value, allowing unauthenticated attackers to solve one challenge and then replay token-less form submissions for a short window, defeating the anti-abuse protection the plugin provides.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 15:18 UTC
CWE
- CWE-345 Insufficient Verification of Data Authenticity
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/28d3bda2-501c-4e… | exploitvdb-entrytechnical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Simple CAPTCHA with Cloudflare Turnstile |
Affected:
0 , < 1.42.0
(semver)
|
{
"containers": {
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"id": "CVE-2026-15239",
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],
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"timestamp": "2026-08-07T15:18:52.471399Z",
"version": "2.0.3"
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"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
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"defaultStatus": "unaffected",
"product": "Simple CAPTCHA with Cloudflare Turnstile",
"vendor": "Unknown",
"versions": [
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"status": "affected",
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"versionType": "semver"
}
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"credits": [
{
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"type": "finder",
"value": "Meher Sudhakar Abbireddi"
},
{
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"type": "coordinator",
"value": "WPScan"
}
],
"descriptions": [
{
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}
],
"metrics": [
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"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
}
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"problemTypes": [
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"descriptions": [
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],
"providerMetadata": {
"dateUpdated": "2026-08-07T07:25:36.748Z",
"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
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"references": [
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"url": "https://wpscan.com/vulnerability/28d3bda2-501c-4eeb-9184-c343367adbea/"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Simple CAPTCHA with Cloudflare Turnstile \u003c 1.42.0 - Unauthenticated Turnstile Protection Bypass via Reusable Forminator Cache Key",
"x_generator": {
"engine": "WPScan CVE Generator"
}
}
},
"cveMetadata": {
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"assignerShortName": "WPScan",
"cveId": "CVE-2026-15239",
"datePublished": "2026-08-07T07:25:36.748Z",
"dateReserved": "2026-07-09T11:43:59.002Z",
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"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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}
CVE-2026-15239 (GCVE-0-2026-15239)
Vulnerability from cvelistv5 – Published: 2026-08-07 07:25 – Updated: 2026-08-07 15:19
VLAI
EPSS
VEX
Title
Simple CAPTCHA with Cloudflare Turnstile < 1.42.0 - Unauthenticated Turnstile Protection Bypass via Reusable Forminator Cache Key
Summary
The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin before 1.42.0 does not bind its Turnstile validation cache to the single-use challenge token in its Forminator integration, instead keying it to an attacker-controlled, reusable request value, allowing unauthenticated attackers to solve one challenge and then replay token-less form submissions for a short window, defeating the anti-abuse protection the plugin provides.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 15:18 UTC
CWE
- CWE-345 Insufficient Verification of Data Authenticity
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/28d3bda2-501c-4e… | exploitvdb-entrytechnical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Simple CAPTCHA with Cloudflare Turnstile |
Affected:
0 , < 1.42.0
(semver)
|
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"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-15239",
"options": [
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"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-07T15:18:52.471399Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
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"problemTypes": [
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"description": "CWE-345 Insufficient Verification of Data Authenticity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-07T15:19:13.952Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://wordpress.org/plugins",
"defaultStatus": "unaffected",
"product": "Simple CAPTCHA with Cloudflare Turnstile",
"vendor": "Unknown",
"versions": [
{
"lessThan": "1.42.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Meher Sudhakar Abbireddi"
},
{
"lang": "en",
"type": "coordinator",
"value": "WPScan"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin before 1.42.0 does not bind its Turnstile validation cache to the single-use challenge token in its Forminator integration, instead keying it to an attacker-controlled, reusable request value, allowing unauthenticated attackers to solve one challenge and then replay token-less form submissions for a short window, defeating the anti-abuse protection the plugin provides."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-345 Insufficient Verification of Data Authenticity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-07T07:25:36.748Z",
"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"shortName": "WPScan"
},
"references": [
{
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"technical-description"
],
"url": "https://wpscan.com/vulnerability/28d3bda2-501c-4eeb-9184-c343367adbea/"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Simple CAPTCHA with Cloudflare Turnstile \u003c 1.42.0 - Unauthenticated Turnstile Protection Bypass via Reusable Forminator Cache Key",
"x_generator": {
"engine": "WPScan CVE Generator"
}
}
},
"cveMetadata": {
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"assignerShortName": "WPScan",
"cveId": "CVE-2026-15239",
"datePublished": "2026-08-07T07:25:36.748Z",
"dateReserved": "2026-07-09T11:43:59.002Z",
"dateUpdated": "2026-08-07T15:19:13.952Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}