Search
Find a vulnerability
Search criteria
ⓘ
Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.
2 vulnerabilities found for flask-session-captcha by Tethik
CVE-2022-24880 (GCVE-0-2022-24880)
Vulnerability from cvelistv5 – Published: 2022-04-25 22:10 – Updated: 2025-04-23 18:32
VLAI
Title
Potential Captcha Validate Bypass in flask-session-captcha
Summary
flask-session-captcha is a package which allows users to extend Flask by adding an image based captcha stored in a server side session. In versions prior to 1.2.1, he `captcha.validate()` function would return `None` if passed no value (e.g. by submitting an having an empty form). If implementing users were checking the return value to be **False**, the captcha verification check could be bypassed. Version 1.2.1 fixes the issue. Users can workaround the issue by not explicitly checking that the value is False. Checking the return value less explicitly should still work.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/Tethik/flask-session-captcha/s… | x_refsource_CONFIRM |
| https://github.com/Tethik/flask-session-captcha/pull/27 | x_refsource_MISC |
| https://github.com/Tethik/flask-session-captcha/c… | x_refsource_MISC |
| https://github.com/Tethik/flask-session-captcha/r… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Tethik | flask-session-captcha |
Affected:
< 1.2.1
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T04:29:00.717Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/Tethik/flask-session-captcha/security/advisories/GHSA-7r87-cj48-wj45"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/Tethik/flask-session-captcha/pull/27"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/Tethik/flask-session-captcha/commit/2811ae23a38d33b620fb7a07de8837c6d65c13e4"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/Tethik/flask-session-captcha/releases/tag/v1.2.1"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2022-24880",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-23T15:55:15.375455Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-04-23T18:32:31.559Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "flask-session-captcha",
"vendor": "Tethik",
"versions": [
{
"status": "affected",
"version": "\u003c 1.2.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "flask-session-captcha is a package which allows users to extend Flask by adding an image based captcha stored in a server side session. In versions prior to 1.2.1, he `captcha.validate()` function would return `None` if passed no value (e.g. by submitting an having an empty form). If implementing users were checking the return value to be **False**, the captcha verification check could be bypassed. Version 1.2.1 fixes the issue. Users can workaround the issue by not explicitly checking that the value is False. Checking the return value less explicitly should still work."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"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": [
{
"cweId": "CWE-253",
"description": "CWE-253: Incorrect Check of Function Return Value",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-394",
"description": "CWE-394: Unexpected Status Code or Return Value",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-754",
"description": "CWE-754: Improper Check for Unusual or Exceptional Conditions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-04-25T22:10:13.000Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/Tethik/flask-session-captcha/security/advisories/GHSA-7r87-cj48-wj45"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Tethik/flask-session-captcha/pull/27"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Tethik/flask-session-captcha/commit/2811ae23a38d33b620fb7a07de8837c6d65c13e4"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Tethik/flask-session-captcha/releases/tag/v1.2.1"
}
],
"source": {
"advisory": "GHSA-7r87-cj48-wj45",
"discovery": "UNKNOWN"
},
"title": "Potential Captcha Validate Bypass in flask-session-captcha",
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2022-24880",
"STATE": "PUBLIC",
"TITLE": "Potential Captcha Validate Bypass in flask-session-captcha"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "flask-session-captcha",
"version": {
"version_data": [
{
"version_value": "\u003c 1.2.1"
}
]
}
}
]
},
"vendor_name": "Tethik"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "flask-session-captcha is a package which allows users to extend Flask by adding an image based captcha stored in a server side session. In versions prior to 1.2.1, he `captcha.validate()` function would return `None` if passed no value (e.g. by submitting an having an empty form). If implementing users were checking the return value to be **False**, the captcha verification check could be bypassed. Version 1.2.1 fixes the issue. Users can workaround the issue by not explicitly checking that the value is False. Checking the return value less explicitly should still work."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-253: Incorrect Check of Function Return Value"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "CWE-394: Unexpected Status Code or Return Value"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "CWE-754: Improper Check for Unusual or Exceptional Conditions"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/Tethik/flask-session-captcha/security/advisories/GHSA-7r87-cj48-wj45",
"refsource": "CONFIRM",
"url": "https://github.com/Tethik/flask-session-captcha/security/advisories/GHSA-7r87-cj48-wj45"
},
{
"name": "https://github.com/Tethik/flask-session-captcha/pull/27",
"refsource": "MISC",
"url": "https://github.com/Tethik/flask-session-captcha/pull/27"
},
{
"name": "https://github.com/Tethik/flask-session-captcha/commit/2811ae23a38d33b620fb7a07de8837c6d65c13e4",
"refsource": "MISC",
"url": "https://github.com/Tethik/flask-session-captcha/commit/2811ae23a38d33b620fb7a07de8837c6d65c13e4"
},
{
"name": "https://github.com/Tethik/flask-session-captcha/releases/tag/v1.2.1",
"refsource": "MISC",
"url": "https://github.com/Tethik/flask-session-captcha/releases/tag/v1.2.1"
}
]
},
"source": {
"advisory": "GHSA-7r87-cj48-wj45",
"discovery": "UNKNOWN"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2022-24880",
"datePublished": "2022-04-25T22:10:13.000Z",
"dateReserved": "2022-02-10T00:00:00.000Z",
"dateUpdated": "2025-04-23T18:32:31.559Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2022-24880 (GCVE-0-2022-24880)
Vulnerability from nvd – Published: 2022-04-25 22:10 – Updated: 2025-04-23 18:32
VLAI
Title
Potential Captcha Validate Bypass in flask-session-captcha
Summary
flask-session-captcha is a package which allows users to extend Flask by adding an image based captcha stored in a server side session. In versions prior to 1.2.1, he `captcha.validate()` function would return `None` if passed no value (e.g. by submitting an having an empty form). If implementing users were checking the return value to be **False**, the captcha verification check could be bypassed. Version 1.2.1 fixes the issue. Users can workaround the issue by not explicitly checking that the value is False. Checking the return value less explicitly should still work.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/Tethik/flask-session-captcha/s… | x_refsource_CONFIRM |
| https://github.com/Tethik/flask-session-captcha/pull/27 | x_refsource_MISC |
| https://github.com/Tethik/flask-session-captcha/c… | x_refsource_MISC |
| https://github.com/Tethik/flask-session-captcha/r… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Tethik | flask-session-captcha |
Affected:
< 1.2.1
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T04:29:00.717Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/Tethik/flask-session-captcha/security/advisories/GHSA-7r87-cj48-wj45"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/Tethik/flask-session-captcha/pull/27"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/Tethik/flask-session-captcha/commit/2811ae23a38d33b620fb7a07de8837c6d65c13e4"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/Tethik/flask-session-captcha/releases/tag/v1.2.1"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2022-24880",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-23T15:55:15.375455Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-04-23T18:32:31.559Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "flask-session-captcha",
"vendor": "Tethik",
"versions": [
{
"status": "affected",
"version": "\u003c 1.2.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "flask-session-captcha is a package which allows users to extend Flask by adding an image based captcha stored in a server side session. In versions prior to 1.2.1, he `captcha.validate()` function would return `None` if passed no value (e.g. by submitting an having an empty form). If implementing users were checking the return value to be **False**, the captcha verification check could be bypassed. Version 1.2.1 fixes the issue. Users can workaround the issue by not explicitly checking that the value is False. Checking the return value less explicitly should still work."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"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": [
{
"cweId": "CWE-253",
"description": "CWE-253: Incorrect Check of Function Return Value",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-394",
"description": "CWE-394: Unexpected Status Code or Return Value",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-754",
"description": "CWE-754: Improper Check for Unusual or Exceptional Conditions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-04-25T22:10:13.000Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/Tethik/flask-session-captcha/security/advisories/GHSA-7r87-cj48-wj45"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Tethik/flask-session-captcha/pull/27"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Tethik/flask-session-captcha/commit/2811ae23a38d33b620fb7a07de8837c6d65c13e4"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Tethik/flask-session-captcha/releases/tag/v1.2.1"
}
],
"source": {
"advisory": "GHSA-7r87-cj48-wj45",
"discovery": "UNKNOWN"
},
"title": "Potential Captcha Validate Bypass in flask-session-captcha",
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2022-24880",
"STATE": "PUBLIC",
"TITLE": "Potential Captcha Validate Bypass in flask-session-captcha"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "flask-session-captcha",
"version": {
"version_data": [
{
"version_value": "\u003c 1.2.1"
}
]
}
}
]
},
"vendor_name": "Tethik"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "flask-session-captcha is a package which allows users to extend Flask by adding an image based captcha stored in a server side session. In versions prior to 1.2.1, he `captcha.validate()` function would return `None` if passed no value (e.g. by submitting an having an empty form). If implementing users were checking the return value to be **False**, the captcha verification check could be bypassed. Version 1.2.1 fixes the issue. Users can workaround the issue by not explicitly checking that the value is False. Checking the return value less explicitly should still work."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-253: Incorrect Check of Function Return Value"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "CWE-394: Unexpected Status Code or Return Value"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "CWE-754: Improper Check for Unusual or Exceptional Conditions"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/Tethik/flask-session-captcha/security/advisories/GHSA-7r87-cj48-wj45",
"refsource": "CONFIRM",
"url": "https://github.com/Tethik/flask-session-captcha/security/advisories/GHSA-7r87-cj48-wj45"
},
{
"name": "https://github.com/Tethik/flask-session-captcha/pull/27",
"refsource": "MISC",
"url": "https://github.com/Tethik/flask-session-captcha/pull/27"
},
{
"name": "https://github.com/Tethik/flask-session-captcha/commit/2811ae23a38d33b620fb7a07de8837c6d65c13e4",
"refsource": "MISC",
"url": "https://github.com/Tethik/flask-session-captcha/commit/2811ae23a38d33b620fb7a07de8837c6d65c13e4"
},
{
"name": "https://github.com/Tethik/flask-session-captcha/releases/tag/v1.2.1",
"refsource": "MISC",
"url": "https://github.com/Tethik/flask-session-captcha/releases/tag/v1.2.1"
}
]
},
"source": {
"advisory": "GHSA-7r87-cj48-wj45",
"discovery": "UNKNOWN"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2022-24880",
"datePublished": "2022-04-25T22:10:13.000Z",
"dateReserved": "2022-02-10T00:00:00.000Z",
"dateUpdated": "2025-04-23T18:32:31.559Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}