Authenticated arbitrary script injection via Message
Published Aug 18, 2021 · Updated Aug 3, 2024
Cross-site scripting in Cybozu Garoon 4.6.0 to 5.0.2 allows remote authenticated attackers to inject arbitrary script via unspecified vectors. The affected Message component processes attacker-controlled content without adequate output neutralization, but the vendor and CNA do not disclose the exact field or code path. Exploitation requires an authenticated account and user interaction, with consequences limited to script execution in a victim session and potential data access or modification available to that session.
Summary
What happened
Cross-site scripting in Cybozu Garoon 4.6.0 to 5.0.2 allows remote authenticated attackers to inject arbitrary script via unspecified vectors. The affected Message component processes attacker-controlled content without adequate output neutralization, but the vendor and CNA do not disclose the exact field or code path. Exploitation requires an authenticated account and user interaction, with consequences limited to script execution in a victim session and potential data access or modification available to that session.
The record
- CVE
- CVE-2021-20770
- Published
- Aug 18, 2021
- Updated
- Aug 3, 2024
- Vendor
- Cybozu
- Product
- Garoon
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 18, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 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=4.6.0 to 5.0.2
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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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