Home/CVE/Contao is an Open Source CMS. In affected versions an untrusted user can inject insert tags into the canonical tag, whic
CVE

CVE-2024-45612

Contao is an Open Source CMS. In affected versions an untrusted user can inject insert tags into the canonical tag, whic

Contao is an Open Source CMS. In affected versions an untrusted user can inject insert tags into the canonical tag, which are then replaced on the web page (front end). Users are advised to update to Contao 4.13.49, 5.3.15 or 5.4.3.

Users unable to upgrade should disable canonical tags in the root page settings.

MEDIUM · CVSS 5.3 EPSS 0.0055
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
▤

Affected Products & Versions

3
contao>= 4.13.0 and < 4.13.49
contao>= 5.3.0 and < 5.3.15
contao>= 5.4.0 and < 5.4.3
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Packagist contao/core-bundle MEDIUM fixed in 4.13.49
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Sep 2024 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://contao.org/en/security-advisories/insert-tag-injection-via-canonical-urlsVendor Advisory
https://github.com/contao/contao/security/advisories/GHSA-2xpq-xp6c-5mgjVendor Advisory
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