Stored XSS via unsanitized user POST
Published Mar 2, 2021 · Updated Aug 3, 2024
Stored cross-site scripting in Accellion FTA 9_12_432 and earlier allows remote attackers to execute script in a victim's browser via a crafted POST request to a user endpoint. The endpoint stores attacker-controlled input without adequate sanitization before later rendering it to users. Exploitation requires a victim to load the affected page, enabling script execution in that user's session and possible data or action access permitted by the browser context.
Summary
What happened
Stored cross-site scripting in Accellion FTA 9_12_432 and earlier allows remote attackers to execute script in a victim's browser via a crafted POST request to a user endpoint. The endpoint stores attacker-controlled input without adequate sanitization before later rendering it to users. Exploitation requires a victim to load the affected page, enabling script execution in that user's session and possible data or action access permitted by the browser context.
The record
- CVE
- CVE-2021-27731
- Published
- Mar 2, 2021
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 24, 2021Exploitation reportedAccellion FTA exploitation campaign
- Mar 2, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
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Public exploit references
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Reported exploitation
- Accellion FTA exploitation campaignreported exploitation
Technologies
Your stack
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Your stack
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