Stored script execution via unsanitized form name
Published Oct 5, 2021 · Updated Aug 4, 2024
Stored XSS in Zoho CRM Lead Magnet 1.7.2.4 allows remote authenticated users to execute JavaScript in another user's browser. The form editor stores a hexadecimal-encoded payload supplied through the Form Name field's formvalue parameter and renders it without effective output neutralization when a form is edited or deleted. WordPress access sufficient to create or update a form and a victim's later edit or deletion trigger execution in the victim's authenticated browser context.
Summary
What happened
Stored XSS in Zoho CRM Lead Magnet 1.7.2.4 allows remote authenticated users to execute JavaScript in another user's browser. The form editor stores a hexadecimal-encoded payload supplied through the Form Name field's formvalue parameter and renders it without effective output neutralization when a form is edited or deleted. WordPress access sufficient to create or update a form and a victim's later edit or deletion trigger execution in the victim's authenticated browser context.
The record
- CVE
- CVE-2021-33849
- Published
- Oct 5, 2021
- Updated
- Aug 4, 2024
- Vendor
- Zoho Corporation
- Product
- Zoho CRM Lead Magnet
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 5, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 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.
- Affected versionversion=1.7.2.4
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- Form Name stored-XSS proof of conceptproof of concept · demonstrated
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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