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.
Does this matter?
Lower severity and a low EPSS score (1.19%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 1.19% probability · 66th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-253, CWE-394, CWE-754
- Affected
- flask-session-captcha project/flask-session-captcha
- Source
- security-advisories@github.com
References
- https://github.com/Tethik/flask-session-captcha/commit/2811ae23a38d33b620fb7a07de8837c6d65c13e4Patch, Third Party Advisory
- https://github.com/Tethik/flask-session-captcha/pull/27Patch, Third Party Advisory
- https://github.com/Tethik/flask-session-captcha/releases/tag/v1.2.1Release Notes, Third Party Advisory
- https://github.com/Tethik/flask-session-captcha/security/advisories/GHSA-7r87-cj48-wj45Third Party Advisory
- https://github.com/Tethik/flask-session-captcha/commit/2811ae23a38d33b620fb7a07de8837c6d65c13e4Patch, Third Party Advisory
- https://github.com/Tethik/flask-session-captcha/pull/27Patch, Third Party Advisory
- https://github.com/Tethik/flask-session-captcha/releases/tag/v1.2.1Release Notes, Third Party Advisory
- https://github.com/Tethik/flask-session-captcha/security/advisories/GHSA-7r87-cj48-wj45Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.