CVE-2022-47408: An issue was discovered in the fp_newsletter (aka Newsletter subscriber management) extension before 1.1.1, 1.

This month

CRITICAL 9.1REMOTEUPGRADE

CVE-2022-47408 is a critical-severity flaw (CVSS 9.1) affecting fp newsletter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-287
Published	2022-12-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fp newsletter project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-12-14 21:15 UTCPublished CVE record published
2026-06-17 05:13 UTCUpdated Record last modified

fp newsletter project fp newsletter UPGRADE

Affected: < 1.1.1 · >= 2.0.0 and < 2.1.2 · >= 2.2.1 and <= 2.4.0 · >= 3.0.0 and < 3.2.6 · 1.2.0

Fixed in: 1.1.1, 2.1.2, 3.2.6

Safe to downgrade to: a release before 1.2.0

1. Check installed version

apt-cache policy fp-newsletter || rpm -q fp-newsletter || fp-newsletter --version

2. UPGRADE to 1.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade fp-newsletter

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fp-newsletter

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.2.0 (Debian / Ubuntu)

apt-cache madison fp-newsletter sudo apt install fp-newsletter=<VERSION_BEFORE_1.2.0> sudo apt-mark hold fp-newsletter

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list fp-newsletter sudo dnf downgrade fp-newsletter-<VERSION_BEFORE_1.2.0> sudo dnf versionlock add fp-newsletter

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-47408?

fp newsletter: upgrade to 1.1.1, 2.1.2, 3.2.6. Exact commands for each OS are on this page.

Is CVE-2022-47408 being exploited?

CVE-2022-47408 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-47408 affect?

CVE-2022-47408 affects fp newsletter. Severity is critical (CVSS 9.1). 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

How urgent is CVE-2022-47408?

Priority 50/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

TYPO3 vulnerabilities

Related CVEs

CVE-2022-47411 CRITICAL 9.1 UPGRADE An issue was discovered in the fp_newsletter (aka Newsletter subscriber management) extension before 1.1.1, 1.
CVE-2022-47410 CRITICAL 9.1 UPGRADE An issue was discovered in the fp_newsletter (aka Newsletter subscriber management) extension before 1.1.1, 1.
CVE-2022-47409 CRITICAL 9.1 UPGRADE An issue was discovered in the fp_newsletter (aka Newsletter subscriber management) extension before 1.1.1, 1.

References

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