Unauthorized actions via missing nonce validation
Published Nov 9, 2023 · Updated Apr 28, 2026
Cross-site request forgery in Didier Sampaolo SpamReferrerBlock 2.22 and earlier allows remote attackers to trigger unauthorized actions. Missing or incorrect nonce validation in an undisclosed administrative request path permits a forged request to be accepted as an authorized administrator action. Exploitation requires a site administrator to interact with attacker-controlled content; the exact action and resulting data or service impact are not publicly described.
Summary
What happened
Cross-site request forgery in Didier Sampaolo SpamReferrerBlock 2.22 and earlier allows remote attackers to trigger unauthorized actions. Missing or incorrect nonce validation in an undisclosed administrative request path permits a forged request to be accepted as an authorized administrator action. Exploitation requires a site administrator to interact with attacker-controlled content; the exact action and resulting data or service impact are not publicly described.
The record
- CVE
- CVE-2023-34371
- Published
- Nov 9, 2023
- Updated
- Apr 28, 2026
- Vendor
- Didier Sampaolo
- Product
- SpamReferrerBlock
- Classifications
- CWE-352, CAPEC-62
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 9, 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?
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- Affected versionversion=n/a <=2.22
What conditions does exploitation require?
What is affected?
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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