CVE-2022-47408

Multiple vulnerabilities in extension "Newsletter subscriber management" (fp_newsletter)

9.1 CriticalFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.69%Down 0.2 points since Dec 15, 2022

What each source reports

CVE List Score used 9.1

Record: CVE-2022-47408
CVSS 3.1: 9.1 CriticalCVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:N/S:U/UI:N
Weakness: CWE-287
Updated: 2026-11-02

EUVDEUVD-2022-7614 9.1

Record: EUVD-2022-7614
CVSS 3.1: 9.1 CriticalCVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:N/S:U/UI:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-f683-35w9-28g5 9.1

Multiple vulnerabilities in extension "Newsletter subscriber management" (fp_newsletter)

The CAPTCHA of the extension can be bypassed which may result in automated creation of various newsletter subscribers. It is possible to provide arbitrary subscription UIDs to the deleteAction of the extension resulting in all newsletter subscribers to be unsubscribed. Insufficient access checks in the createAction and unsubscribeAction can be used to obtain data of existing newsletter subscribers.

Record: GHSA-f683-35w9-28g5
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-287, CWE-863
Updated: 2026-11-02

NVD 9.1

Record: CVE-2022-47408
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-287
Updated: 2026-11-02

OSV 9.1

Record: CVE-2022-47408
CVSS 3.1: 9.1 CriticalCVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:N/S:U/UI:N
Updated: 2026-11-02

OSVGHSA-f683-35w9-28g5 9.1

Multiple vulnerabilities in extension "Newsletter subscriber management" (fp_newsletter)

Record: GHSA-f683-35w9-28g5
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-287, CWE-863
Updated: 2026-11-02

Affected products

fp newsletter project newsletter

Affected packages

Affected packages
Package	Affected	Fixed
`fixpunkt/fp-newsletter` Packagist	2.2.0 up to 3.2.6	3.2.6
`fixpunkt/fp-newsletter` Packagist	2.0.0 up to 2.1.2	2.1.2
`fixpunkt/fp-newsletter` Packagist	before 1.1.1	1.1.1

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-47408 is a critical vulnerability (CVSS 9.1) in Fp Newsletter Project Newsletter, published December 14, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.69%, the 53rd percentile. Fixed in fixpunkt/fp-newsletter 3.2.6.