No exploitation reportedFix available

CVE-2022-24899

Q: Is CVE-2022-24899 actively exploited?

Active exploitation of CVE-2022-24899 has not been confirmed. Its EPSS score was 4.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-24899?

CVE-2022-24899 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

No exploitation reported by the sources we read.

Published2022-05-06
WeaknessCWE-79

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Contao is a powerful open source CMS that allows you to create professional websites and scalable web applications. In versions of Contao prior to 4.13.3 it is possible to inject code into the canonical tag. As a workaround users may disable canonical tags in the root page settings.

Timeline

dates in UTC

2022-05-0600:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-24899?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-24899?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Contao

Branch	Affected	Fixed in	Source
4.13	≥ 4.13.0, ≤ 4.13.2	no fix published	NVD

contao/contao

Branch	Affected	Fixed in	Source
4.13	≥ 4.13.0, < 4.13.3	4.13.3	OSV

contao/core-bundle

Branch	Affected	Fixed in	Source
4.13	≥ 4.13.0, < 4.13.3	4.13.3	OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

contao.orgVendor Advisory
github.comPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-04-23
OpenCVESSVC decisionnone—
CNACVSS 3.17.2read 2026-10-23
NVDCVSS 3.16.1read 2026-10-23
NVDCVSS 2.04.3read 2026-10-23
CNAweakness (CWE)CWE-79read 2026-10-23
NVDweakness (CWE)CWE-79read 2026-10-23
FIRST EPSSEPSS score4.5 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Published: 2022-05-06
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-24899?

Is CVE-2022-24899 actively exploited?

Active exploitation of CVE-2022-24899 has not been confirmed. Its EPSS score was 4.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-24899?

CVE-2022-24899 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

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