CVE-2022-33154: The schema (aka Embedding schema.org vocabulary) extension before 1.13.1 and 2.x before 2.5.1 for TYPO3 allows

Routine

MEDIUM 5.4UPGRADE

CVE-2022-33154 is a medium-severity flaw (CVSS 5.4) affecting schema. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The schema (aka Embedding schema.org vocabulary) extension before 1.13.1 and 2.x before 2.5.1 for TYPO3 allows XSS.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-07-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: schema project

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

Am I affected?

Timeline

2022-07-12 22:15 UTCPublished CVE record published
2026-06-17 04:48 UTCUpdated Record last modified

schema project schema UPGRADE

Affected: < 1.13.1 · >= 2.0.0 and < 2.5.1

Fixed in: 1.13.1, 2.5.1

Safe to downgrade to: a release before 2.0.0

1. Check installed version

apt-cache policy schema || rpm -q schema || schema --version

2. UPGRADE to 1.13.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade schema

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade schema

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 2.0.0 (Debian / Ubuntu)

apt-cache madison schema sudo apt install schema=<VERSION_BEFORE_2.0.0> sudo apt-mark hold schema

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

dnf --showduplicates list schema sudo dnf downgrade schema-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add schema

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-2022-33154?

schema: upgrade to 1.13.1, 2.5.1. Exact commands for each OS are on this page.

Is CVE-2022-33154 being exploited?

CVE-2022-33154 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-2022-33154 affect?

CVE-2022-33154 affects schema. Severity is medium (CVSS 5.4). The schema (aka Embedding schema.org vocabulary) extension before 1.13.1 and 2.x before 2.5.1 for TYPO3 allows XSS.

How urgent is CVE-2022-33154?

Priority 30/100. No elevated risk signals yet.

Software pages

TYPO3 vulnerabilities

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References

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