CVE-2024-50348

InstantCMS has a Cross Site Scripting Vulnerability

MEDIUM
5.4
CVSS Score
Published: October 29, 2024 at 10:25 PM UTC
Updated: June 17, 2026 at 08:04 AM UTC
3 products affected across 2 vendorsInstantcmsInstantcmsICMS2

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

InstantCMS is a free and open source content management system. In photo upload function in the photo album page there is no input validation taking place. Due to this attackers are able to inject the XSS (Cross Site Scripting) payload and execute. This vulnerability is fixed in 2.16.3.

Affected

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

v < 2.16.3
Affected range stops below 2.16.3, so it looks safe — our inference, not a vendor statement
v < 2.16.3
Affected range stops below 2.16.3, so it looks safe — our inference, not a vendor statement
v < 2.16.3
Affected range stops below 2.16.3, 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

SSVCPoCNot automatablePartial impact

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

CVSS

5.4MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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