Authentication bypass via reusable TFA token
Published May 21, 2025 · Updated May 21, 2025
Authentication bypass in Drupal One Time Password before 1.3.0 allows remote attackers to reuse a captured TFA token for account access. The module accepts the same time-based second-factor token more than once during its 30-second validity window instead of rejecting prior use. Exploitation requires a valid username and password plus the captured second-factor token, and grants only the access of the compromised account.
Summary
What happened
Authentication bypass in Drupal One Time Password before 1.3.0 allows remote attackers to reuse a captured TFA token for account access. The module accepts the same time-based second-factor token more than once during its 30-second validity window instead of rejecting prior use. Exploitation requires a valid username and password plus the captured second-factor token, and grants only the access of the compromised account.
The record
- CVE
- CVE-2025-48012
- Published
- May 21, 2025
- Updated
- May 21, 2025
- Vendor
- OAuth.js
- Product
- One Time Password
- Classifications
- CWE-294, CAPEC-555, T1078
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 21, 2025CVE publishedPublication date reported by the CVE source.
- May 21, 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=0.0.0 <1.3.0
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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