Stored XSS via unsanitized theme background setting
Published Mar 24, 2025 · Updated Mar 24, 2025
Stored XSS in MetaSlider Slideshow before 3.95.0 allows remote authenticated users with administrator access to inject script. The theme Background field stores a crafted style terminator and HTML event handler without adequate sanitization, then emits it in slider CSS. Administrator access is required, and a victim must view a post containing the slider shortcode; the script then runs in that viewer's browser session.
Summary
What happened
Stored XSS in MetaSlider Slideshow before 3.95.0 allows remote authenticated users with administrator access to inject script. The theme Background field stores a crafted style terminator and HTML event handler without adequate sanitization, then emits it in slider CSS. Administrator access is required, and a victim must view a post containing the slider shortcode; the script then runs in that viewer's browser session.
The record
- CVE
- CVE-2025-1062
- Published
- Mar 24, 2025
- Updated
- Mar 24, 2025
- Vendor
- MetaSlider
- Product
- MetaSlider Slideshow
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Mar 24, 2025CVE publishedPublication date reported by the CVE source.
- Mar 24, 2025Record 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=0 <3.95.0
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
- WPScan theme Background field proof of conceptproof 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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