Stored XSS via submitted form content
Published Jul 27, 2026 · Updated Jul 27, 2026
Stored XSS in Message Filter for Contact Form 7 1.6.3.9 and earlier allows remote attackers to execute scripts through form submissions. Public sources identify submitted form content as the stored payload but do not disclose the affected function or output sink. An unauthenticated submitter can plant the payload, but a privileged user must view the affected content before the script executes.
Summary
What happened
Stored XSS in Message Filter for Contact Form 7 1.6.3.9 and earlier allows remote attackers to execute scripts through form submissions. Public sources identify submitted form content as the stored payload but do not disclose the affected function or output sink. An unauthenticated submitter can plant the payload, but a privileged user must view the affected content before the script executes.
The record
- CVE
- CVE-2026-65438
- Published
- Jul 27, 2026
- Updated
- Jul 27, 2026
- Vendor
- Kofi Mokome
- Product
- Message Filter for Contact Form 7
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 27, 2026CVE publishedPublication date reported by the CVE source.
- Jul 27, 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 <=1.6.3.9 changes=[{"at":"1.6.4.0","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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