Security readout for executives and security teams
Plain-English summary
This issue weakens CAPTCHA protection in TGCaptcha2 0.3.0. A CAPTCHA answer that was solved once could be reused because the implementation lacked a nonce. For a business, the main concern is automated abuse of public forms, such as spam or fraudulent submissions, where this library is deployed.
Executive priority
Prioritize review if the organization uses TGCaptcha2 0.3.0 on internet-facing forms. The likely business risk is abuse prevention failure rather than direct system compromise.
Technical view
CVE-2016-1000032 describes a replay flaw in TGCaptcha2 0.3.0. The missing nonce means a single valid CAPTCHA solution is not clearly bound to one unique challenge or transaction. The source bundle does not provide CVSS, CWE, patch, or package ecosystem details.
Likely exposure
Exposure appears limited to applications using TGCaptcha2 version 0.3.0 on CAPTCHA-protected workflows. The public source data does not identify broader affected products, CPEs, deployment patterns, or patched versions.
Exploitation context
The CVE record describes replaying a solved CAPTCHA multiple times. The source bundle does not include KEV listing or other cited evidence of active exploitation in the wild.
Researcher notes
Evidence is sparse. The CVE description names the vulnerable version and replay condition, but the bundle lacks CVSS, CWE mapping, affected CPEs, exploit status, and remediation details. Treat product scope and fixes as unconfirmed until vendor or distribution guidance is reviewed.
Mitigation direction
- Identify whether TGCaptcha2 0.3.0 is used in any application.
- Check upstream or distribution guidance for fixed versions or replacement recommendations.
- Avoid relying on reusable CAPTCHA validation for public submission flows.
- Add request-unique validation semantics where vendor guidance supports it.
- Monitor affected forms for spam, abuse, or repeated CAPTCHA reuse patterns.
Validation and detection
- Inventory application dependencies for TGCaptcha2 0.3.0.
- Review CAPTCHA validation logic for per-challenge uniqueness controls.
- Confirm whether solved challenges expire after a single use.
- Check logs for repeated submissions tied to the same CAPTCHA result.
- Document compensating controls for public forms using this library.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2016-1000032 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.redhat.com/show_bug.cgi?id=1316083CVE reference · x_refsource_MISC
- https://patrick.uiterwijk.org/2016/03/09/fedora-spam-dwf-2016-89000/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.