CVE-2024-40743

[20240805] - Core - XSS vectors in Outputfilter::strip* methods

MEDIUM
6.1
CVSS Score
Published: August 20, 2024 at 04:03 PM UTC
Updated: June 17, 2026 at 07:46 AM UTC
1 product affected across 1 vendorJoomla!

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

The stripImages and stripIframes methods didn't properly process inputs, leading to XSS vectors.

Affected

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

3.0.0 ≤ v < 3.10.174.0.0 ≤ v < 4.4.65.0.0 ≤ v < 5.1.33.0.0-3.10.164.0.0-4.4.65.0.0-5.1.2
Affected range stops below 3.10.17, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.1.3, 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:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

6.1MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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