Stored XSS via unescaped user-supplied attributes
Published Apr 18, 2024 · Updated Apr 28, 2026
Stored XSS in Averta Master Slider 3.9.8 and earlier allows remote authenticated users to inject scripts through user-supplied attributes. The plugin insufficiently sanitizes user-supplied attributes and fails to escape them when pages render, so stored markup executes in a visitor's browser. Contributor-level access is required, and viewing an injected page triggers script execution in that visitor's browser.
Summary
What happened
Stored XSS in Averta Master Slider 3.9.8 and earlier allows remote authenticated users to inject scripts through user-supplied attributes. The plugin insufficiently sanitizes user-supplied attributes and fails to escape them when pages render, so stored markup executes in a visitor's browser. Contributor-level access is required, and viewing an injected page triggers script execution in that visitor's browser.
The record
- CVE
- CVE-2024-32580
- Published
- Apr 18, 2024
- Updated
- Apr 28, 2026
- Vendor
- Averta
- Product
- Master Slider – Responsive Touch Slider
- Classifications
- CWE-79, CAPEC-592, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 18, 2024CVE publishedPublication date reported by the CVE source.
- Apr 28, 2026Record 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=n/a <=3.9.8 changes=[{"at":"3.9.9","status":"unaffected"}]
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
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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