Stored XSS via unvalidated reCAPTCHA site key
Published May 10, 2024 · Updated Mar 28, 2025
Stored XSS in bozdoz reCAPTCHA Jetpack 0.2.2 and earlier allows remote attackers to inject scripts through a forged settings request. The recaptcha-jetpack settings page accepts an unvalidated site_key POST value, stores it without sanitization, and later inserts it into contact-form HTML without attribute escaping. Exploitation requires Jetpack, a page or post containing a Jetpack Contact Form, and an administrator who opens attacker-controlled HTML; the payload executes when the form page is viewed.
Summary
What happened
Stored XSS in bozdoz reCAPTCHA Jetpack 0.2.2 and earlier allows remote attackers to inject scripts through a forged settings request. The recaptcha-jetpack settings page accepts an unvalidated site_key POST value, stores it without sanitization, and later inserts it into contact-form HTML without attribute escaping. Exploitation requires Jetpack, a page or post containing a Jetpack Contact Form, and an administrator who opens attacker-controlled HTML; the payload executes when the form page is viewed.
The record
- CVE
- CVE-2024-3941
- Published
- May 10, 2024
- Updated
- Mar 28, 2025
- Vendor
- bozdoz
- Product
- reCAPTCHA Jetpack
- Classifications
- CWE-352, CWE-79, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 10, 2024CVE publishedPublication date reported by the CVE source.
- Mar 28, 2025Record 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=0 <=0.2.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- WPScan CSRF-to-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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