Stored XSS via unsanitized Gutenberg widget content
Published Feb 5, 2026 · Updated Feb 5, 2026
Stored XSS in Dynamic Widget Content 1.3.6 and earlier allows remote authenticated users to inject scripts through Gutenberg widget content. The Gutenberg sidebar save path stores user-supplied widget content without sanitizing it for users who lack unfiltered_html, while the widget output path renders the stored value without context-appropriate escaping. Contributor-level access is required; opening an affected page executes the persistent script in the visitor's browser context.
Summary
What happened
Stored XSS in Dynamic Widget Content 1.3.6 and earlier allows remote authenticated users to inject scripts through Gutenberg widget content. The Gutenberg sidebar save path stores user-supplied widget content without sanitizing it for users who lack unfiltered_html, while the widget output path renders the stored value without context-appropriate escaping. Contributor-level access is required; opening an affected page executes the persistent script in the visitor's browser context.
The record
- CVE
- CVE-2026-1268
- Published
- Feb 5, 2026
- Updated
- Feb 5, 2026
- Vendor
- Bootstrapped Ventures
- Product
- Dynamic Widget Content
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 5, 2026CVE publishedPublication date reported by the CVE source.
- Feb 5, 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=* <=1.3.6
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
- CVE-2026-1268 Dynamic Widget Content proof of conceptproof of concept · unverified
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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