CVE Vulnerability

CVE-2022-24880

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/Tethik/flask-session-captcha/releases/tag/v1.2.1 Release Notes Third Party Advisory
https://github.com/Tethik/flask-session-captcha/pull/27 Patch Third Party Advisory
https://github.com/Tethik/flask-session-captcha/commit/2811ae23a38d33b620fb7a07de8837c6d65c13e4 Patch Third Party Advisory
https://github.com/Tethik/flask-session-captcha/security/advisories/GHSA-7r87-cj48-wj45 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:flask-session-captcha_project:flask-session-captcha:*:*:*:*:*:*:*:*
Information

Published : 2022-04-25 10:15

Updated : 2022-05-05 06:20

NVD link : CVE-2022-24880

Mitre link : CVE-2022-24880

Products Affected
No products.
CWE
CWE-754