Reflected XSS via unsanitized postMessage content
Published Dec 13, 2025 · Updated Dec 13, 2025
Reflected XSS in WP to LinkedIn Auto Publish 1.9.8 and earlier allows remote attackers to run scripts through crafted postMessage data. The notice.js message handler accepts attacker-controlled postMessage content and renders it without sufficient sanitization or output escaping. Execution requires an unauthenticated attacker to lure a user into opening a crafted link, after which the script runs in that user's browser context.
Summary
What happened
Reflected XSS in WP to LinkedIn Auto Publish 1.9.8 and earlier allows remote attackers to run scripts through crafted postMessage data. The notice.js message handler accepts attacker-controlled postMessage content and renders it without sufficient sanitization or output escaping. Execution requires an unauthenticated attacker to lure a user into opening a crafted link, after which the script runs in that user's browser context.
The record
- CVE
- CVE-2025-12077
- Published
- Dec 13, 2025
- Updated
- Dec 13, 2025
- Vendor
- XYZScripts
- Product
- WP to LinkedIn Auto Publish
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 13, 2025CVE publishedPublication date reported by the CVE source.
- Dec 13, 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=* <=1.9.8
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
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Technologies
Your stack
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Your stack
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