CVE-2021-24405Public exploitNetwork attack vector

Stored XSS via unchecked cookie banner settings

Published Jul 6, 2021 · Updated Aug 3, 2024

Stored XSS in IZSoft Easy Cookies Policy 1.6.2 and earlier allows remote authenticated users to inject script through banner settings. The settings handler performs no capability or CSRF check, then stores banner text without sanitization and outputs it on frontend and administrative pages. Subscriber access suffices; alternatively, a context-dependent attacker can submit the setting through CSRF, causing the stored script to run for page visitors or administrators.

CVSS severity6.5
Medium
EPSS probability10.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in IZSoft Easy Cookies Policy 1.6.2 and earlier allows remote authenticated users to inject script through banner settings. The settings handler performs no capability or CSRF check, then stores banner text without sanitization and outputs it on frontend and administrative pages. Subscriber access suffices; alternatively, a context-dependent attacker can submit the setting through CSRF, causing the stored script to run for page visitors or administrators.

The record

CVE
CVE-2021-24405
Published
Jul 6, 2021
Updated
Aug 3, 2024
Vendor
IZSoft
Product
Easy Cookies Policy
Classifications
CWE-863, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 6, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.6.2 <=1.6.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IZSoft · Easy Cookies Policyversion=1.6.2 <=1.6.2

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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