Service interruption via oversized form submissions
Published Dec 7, 2023 · Updated Apr 28, 2026
Uncontrolled resource consumption in Saturday Drive Ninja Forms 3.6.25 and earlier allows remote attackers to interrupt service. The unauthenticated form-submission path accepts and processes excessive attacker-supplied extra data without an effective size bound, which can exhaust database capacity while the request is handled. A publicly reachable Ninja Forms form is required; the documented impact is failed requests during processing, not data disclosure or modification.
Summary
What happened
Uncontrolled resource consumption in Saturday Drive Ninja Forms 3.6.25 and earlier allows remote attackers to interrupt service. The unauthenticated form-submission path accepts and processes excessive attacker-supplied extra data without an effective size bound, which can exhaust database capacity while the request is handled. A publicly reachable Ninja Forms form is required; the documented impact is failed requests during processing, not data disclosure or modification.
The record
- CVE
- CVE-2023-35909
- Published
- Dec 7, 2023
- Updated
- Apr 28, 2026
- Vendor
- Saturday Drive
- Product
- Ninja Forms
- Classifications
- CWE-400, T1499.003
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 7, 2023CVE publishedPublication date reported by the CVE source.
- Apr 28, 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 <=3.6.25 changes=[{"at":"3.6.26","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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