CVE-2024-45612

Insert tag injection via canonical URL in Contao

MEDIUM

5.3

CVSS Score

Published: September 17, 2024 at 06:29 PM UTC

Updated: June 17, 2026 at 07:54 AM UTC

1 product affected across 1 vendorContao

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Severity

MEDIUM5.3

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Contao · Contao

95%

v < 4.13.49v < 5.3.15v < 5.4.34.13.0 ≤ v < 4.13.495.0.0 ≤ v < 5.3.155.3.0 ≤ v < 5.3.155.4.0 ≤ v < 5.4.34.13.0 5.0.0 5.4.0

Affected range stops below 4.13.49, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.3.15, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.4.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCVendor Advisory

Source: [email protected]

https://contao.org/en/security-advisories/insert-tag-injection-via-canonical-urls

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://github.com/contao/contao/security/advisories/GHSA-2xpq-xp6c-5mgj

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-20CWE-74

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