Contributor-level stored XSS via unescaped shortcode attributes
Published Mar 21, 2026 · Updated Mar 21, 2026
Stored XSS in the social_share shortcode in Ed's Social Share 3.0 and earlier allows remote authenticated users to inject web scripts. The shortcode renders the text, color, and twitter attributes without the escaping later added through esc_html() and esc_attr(). Contributor-level access is required to save a crafted page, and the script runs when a visitor opens that page, enabling actions in the visitor's browser context.
Summary
What happened
Stored XSS in the social_share shortcode in Ed's Social Share 3.0 and earlier allows remote authenticated users to inject web scripts. The shortcode renders the text, color, and twitter attributes without the escaping later added through esc_html() and esc_attr(). Contributor-level access is required to save a crafted page, and the script runs when a visitor opens that page, enabling actions in the visitor's browser context.
The record
- CVE
- CVE-2026-2501
- Published
- Mar 21, 2026
- Updated
- Mar 21, 2026
- Vendor
- Next Level Web Developers
- Product
- Ed's Social Share
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 21, 2026CVE publishedPublication date reported by the CVE source.
- Mar 21, 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?
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- Affected versionversion=* <=2.0
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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