CVE-2022-24880

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Summary

CVECVE-2022-24880
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-04-25 22:15:00 UTC
Updated2022-05-05 18:20:00 UTC
Descriptionflask-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.

Risk And Classification

Problem Types: CWE-754

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Flask-session-captcha Project Flask-session-captcha All All All All

References

ReferenceSourceLinkTags
Release v1.2.1 · Tethik/flask-session-captcha · GitHub MISC github.com
Potential Captcha Validate Bypass due to unexpected return value of validate-function · Advisory · Tethik/flask-session-captcha · GitHub CONFIRM github.com
add some extra tests to ensure False is returned · Tethik/flask-session-captcha@2811ae2 · GitHub MISC github.com
Fix `validate()` returned value by GuillaumeGomez · Pull Request #27 · Tethik/flask-session-captcha · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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