CVE intelligence and bounded remediation
CVE-2016-1000032 — Python Tgcaptcha2 security vulnerability
High
CVSS 7.5
TGCaptcha2 version 0.3.0 is vulnerable to a replay attack due to a missing nonce allowing attackers to use a single solved CAPTCHA multiple times.
- Severity
- High
- CVSS
- 7.5 (3.0)
- Published
- 2016-10-25
- CISA KEV
- Not currently listed
- Ecosystem
- python/pypi
- Weaknesses
- CWE-284
Affected products
- python / tgcaptcha2 / 0.3.0
Matched remediation archetype
Authorization bypass, IDOR, and cross-tenant access
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Check exposure
- Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
- Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
- Use synthetic fixtures to compare intended access matrices without accessing another user's real data.
Remediate safely
- Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
- Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
- Add deny-by-default policy tests for horizontal and vertical access across every affected transport.
Authoritative sources
Complete CVE record and remediation plan
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