Browser script execution via unescaped AJAX parameter
Published Jan 16, 2024 · Updated Jun 20, 2025
Reflected XSS in Rens Tillmann Super Forms before 6.0.4 allows remote attackers to execute script in a user's browser via a crafted request. The super_language_switcher AJAX action writes the bob_czy_panstwa_sprawa_zostala_rozwiazana parameter into an HTML attribute without attribute escaping or a request nonce. No authentication is required, but a victim must submit the crafted request; successful exploitation runs attacker-controlled script in that victim's browser context.
Summary
What happened
Reflected XSS in Rens Tillmann Super Forms before 6.0.4 allows remote attackers to execute script in a user's browser via a crafted request. The super_language_switcher AJAX action writes the bob_czy_panstwa_sprawa_zostala_rozwiazana parameter into an HTML attribute without attribute escaping or a request nonce. No authentication is required, but a victim must submit the crafted request; successful exploitation runs attacker-controlled script in that victim's browser context.
The record
- CVE
- CVE-2022-0402
- Published
- Jan 16, 2024
- Updated
- Jun 20, 2025
- Vendor
- Rens Tillmann
- Product
- Super Forms
- Classifications
- CWE-352, CWE-79, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 16, 2024CVE publishedPublication date reported by the CVE source.
- Jun 20, 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 <6.0.4
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 cross-site request proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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