Stored cross-site scripting via forged attachment MIME type
Published Apr 22, 2020 · Updated Sep 16, 2024
Stored XSS in Atlassian Confluence Server 6.14.0 through 6.14.3 and 6.15.0 before 6.15.5 allows remote attackers to execute browser script. The attachment-uploading path accepts an attacker-controlled mimeType parameter and stores the attachment so its payload is rendered as active content. A victim must view the malicious attachment; the script then runs in that user's Confluence origin and can read or alter data available to the session.
Summary
What happened
Stored XSS in Atlassian Confluence Server 6.14.0 through 6.14.3 and 6.15.0 before 6.15.5 allows remote attackers to execute browser script. The attachment-uploading path accepts an attacker-controlled mimeType parameter and stores the attachment so its payload is rendered as active content. A victim must view the malicious attachment; the script then runs in that user's Confluence origin and can read or alter data available to the session.
The record
- CVE
- CVE-2019-20102
- Published
- Apr 22, 2020
- Updated
- Sep 16, 2024
- Vendor
- Atlassian
- Product
- Confluence Server
- Classifications
- CWE-79, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 22, 2020CVE publishedPublication date reported by the CVE source.
- Sep 16, 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=6.14.0 <unspecified
- Affected versionversion=6.15.0 <unspecified
- Affected versionversion=unspecified <=6.14.3
- Affected versionversion=unspecified <6.15.5
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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