Email flooding via unthrottled password resets
Published Feb 20, 2025 · Updated Nov 4, 2025
Resource exhaustion in PHPJabbers Meeting Room Booking System 1.0 allows remote authenticated users to flood an account with reset emails. The Forgot Password handler accepts repeated submissions for a legitimate user's address and generates an email for each request without any rate limit. Low-privilege access is required, and the documented consequence is excessive mail generation and mailbox flooding rather than a booking-service crash.
Summary
What happened
Resource exhaustion in PHPJabbers Meeting Room Booking System 1.0 allows remote authenticated users to flood an account with reset emails. The Forgot Password handler accepts repeated submissions for a legitimate user's address and generates an email for each request without any rate limit. Low-privilege access is required, and the documented consequence is excessive mail generation and mailbox flooding rather than a booking-service crash.
The record
- CVE
- CVE-2023-51332
- Published
- Feb 20, 2025
- Updated
- Nov 4, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-404, T1499.003
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 20, 2025CVE publishedPublication date reported by the CVE source.
- Nov 4, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- PHPJabbers Meeting Room Booking System 1.0 Missing Rate Limitingproof of concept · unverified
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Technologies
Your stack
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Your stack
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