CVE-2022-47408

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-12-14 · updated 2026-06-17
Weakness: CWE-287

Description

An issue was discovered in the fp_newsletter (aka Newsletter subscriber management) extension before 1.1.1, 1.2.0, 2.x before 2.1.2, 2.2.1 through 2.4.0, and 3.x before 3.2.6 for TYPO3. There is a CAPTCHA bypass that can lead to subscribing many people.

Affected products

Fp Newsletter Project Fp Newsletter: before 1.1.1; from 2.0.0 before 2.1.2; from 2.2.1 through 2.4.0; from 3.0.0 before 3.2.6; 1.2.0 — fixed in 1.1.1, 2.1.2, 3.2.6

How to fix

Upgrade to a fixed version: Fp Newsletter Project Fp Newsletter 1.1.1, 2.1.2, 3.2.6. Check the vendor advisory for mitigations.

References

https://typo3.org/security/advisory/typo3-ext-sa-2022-017
https://typo3.org/security/advisory/typo3-ext-sa-2022-017

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