Stored XSS via permitted SVG uploads
Published Jul 30, 2024 · Updated Aug 23, 2024
Stored XSS in uploadFileAction in WonderCMS 3.4.3 allows remote authenticated users to execute JavaScript through an uploaded SVG. The function permits the image/svg+xml MIME type and stores the file without neutralizing embedded script content. Administrator access is required to upload the payload; opening its URL runs the script in the visitor's browser.
Summary
What happened
Stored XSS in uploadFileAction in WonderCMS 3.4.3 allows remote authenticated users to execute JavaScript through an uploaded SVG. The function permits the image/svg+xml MIME type and stores the file without neutralizing embedded script content. Administrator access is required to upload the payload; opening its URL runs the script in the visitor's browser.
The record
- CVE
- CVE-2024-41304
- Published
- Jul 30, 2024
- Updated
- Aug 23, 2024
- Vendor
- WonderCMS
- Product
- WonderCMS
- Classifications
- CWE-94, T1059.007
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jul 30, 2024CVE publishedPublication date reported by the CVE source.
- Aug 23, 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=3.4.3
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
- WonderCMS 3.4.3 SVG Stored Cross-Site Scriptingproof 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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