Document-rule modification via missing AJAX nonce validation
Published Oct 31, 2025 · Updated Oct 31, 2025
Cross-site request forgery in Averta Depicter 4.0.4 and earlier allows remote attackers to modify document rules via forged requests. The depicter-document-rules-store AJAX handler accepts attacker-controlled rule data and writes it without validating a request nonce. Exploitation requires a logged-in site administrator or editor to visit an attacker-controlled page, and the demonstrated consequence is unauthorized rule modification.
Summary
What happened
Cross-site request forgery in Averta Depicter 4.0.4 and earlier allows remote attackers to modify document rules via forged requests. The depicter-document-rules-store AJAX handler accepts attacker-controlled rule data and writes it without validating a request nonce. Exploitation requires a logged-in site administrator or editor to visit an attacker-controlled page, and the demonstrated consequence is unauthorized rule modification.
The record
- CVE
- CVE-2025-8383
- Published
- Oct 31, 2025
- Updated
- Oct 31, 2025
- Vendor
- Averta
- Product
- Depicter
- Classifications
- CWE-352, T1565.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 31, 2025CVE publishedPublication date reported by the CVE source.
- Oct 31, 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=* <=4.0.4
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
- CleanTalk CSRF proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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