CVE-2021-35210

MEDIUM
6.1
CVSS Score
Published: June 23, 2021 at 09:34 AM UTC
Updated: June 17, 2026 at 03:57 AM UTC
1 product affected across 1 vendorContao

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.7%

Description

Contao 4.5.x through 4.9.x before 4.9.16, and 4.10.x through 4.11.x before 4.11.5, allows XSS. It is possible to inject code into the tl_log table that will be executed in the browser when the system log is called in the back end.

Affected

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

4.10.0 ≤ v < 4.11.54.5.0 ≤ v < 4.9.16
Affected range stops below 4.11.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.16, 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:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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