Session theft via stored script injection
Published Jun 16, 2022 · Updated Apr 15, 2025
Stored cross-site scripting in BestWebSoft Contact Form 4.0.0 allows remote authenticated users to inject script through a crafted link. The original advisory does not identify the affected parameter or code path, but establishes that a malicious link stores script that later executes in a victim's browser. Exploitation requires low-privileged access and victim interaction, and the script can steal session tokens or perform actions as the victim.
Summary
What happened
Stored cross-site scripting in BestWebSoft Contact Form 4.0.0 allows remote authenticated users to inject script through a crafted link. The original advisory does not identify the affected parameter or code path, but establishes that a malicious link stores script that later executes in a victim's browser. Exploitation requires low-privileged access and victim interaction, and the script can steal session tokens or perform actions as the victim.
The record
- CVE
- CVE-2017-20055
- Published
- Jun 16, 2022
- Updated
- Apr 15, 2025
- Vendor
- BestWebSoft
- Product
- Contact Form
- Classifications
- CWE-80, CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 16, 2022CVE publishedPublication date reported by the CVE source.
- Apr 15, 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=4.0.0
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
- Stored Cross-Site Scripting vulnerability in Contact Form WordPress Pluginproof 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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