CVE-2021-24595Public exploitNetwork attack vector

Stored script execution via forged option updates

Published Oct 18, 2021 · Updated Aug 3, 2024

Cross-site request forgery in Marcus Franke WP Cookie Choice 1.1.0 and earlier allows remote attackers to plant stored scripts via forged requests. The options-saving path accepts cross-origin POST values without a CSRF check and later inserts them into HTML attributes without escaping. A logged-in administrator must submit the forged form; the payload executes when the affected attribute output is rendered.

CVSS severity6.5
Medium
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Marcus Franke WP Cookie Choice 1.1.0 and earlier allows remote attackers to plant stored scripts via forged requests. The options-saving path accepts cross-origin POST values without a CSRF check and later inserts them into HTML attributes without escaping. A logged-in administrator must submit the forged form; the payload executes when the affected attribute output is rendered.

The record

CVE
CVE-2021-24595
Published
Oct 18, 2021
Updated
Aug 3, 2024
Vendor
Marcus Franke
Product
WP Cookie Choice
Classifications
CWE-79, CWE-352, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 18, 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=1.1.0 <=1.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Marcus Franke · WP Cookie Choiceversion=1.1.0 <=1.1.0

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-352Cross-Site Request Forgery (CSRF)
T1204.001User Execution: Malicious Link

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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