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CVE-2021-24574

Simple Banner < 2.10.4 - Authenticated Stored XSS

MEDIUM
4.8
CVSS Score
Published: August 23, 2021 at 11:10 AM UTC
Updated: June 17, 2026 at 03:40 AM UTC
1 product affected across 1 vendorSimple Banner

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Severity
MEDIUM4.8
Exploit prediction
EPSS 0.7%

Description

The Simple Banner WordPress plugin before 2.10.4 does not sanitise and escape one of its settings, allowing high privilege users such as admin to use Cross-Site Scripting payload even when the unfiltered_html capability is disallowed.

Affected

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

Simple Banner· Simple Banner Projectwordpress-plugin
95%
v < 2.10.4
Affected range stops below 2.10.4, 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_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://plugins.trac.wordpress.org/changeset/2571047/
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://wpscan.com/vulnerability/9adf7022-5108-43b7-bf0e-a42593185b74

CVSS

4.8MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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