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CVE-2016-1000032

TGCaptcha2 version 0.3.0 is vulnerable to a replay attack due to a missing nonce allowing...

7.5 High

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

1.33%Up 0.4 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 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.

Record
CVE-2016-1000032
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:P/A:N
Weakness
CWE-284
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2016-1000032
Updated
2026-11-02
EUVDEUVD-2016-1038 No score

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.

Record
EUVD-2016-1038
Updated
2026-11-03
GitHub AdvisoriesGHSA-r6vr-q24x-m5gp 7.5

TGCaptcha2 version 0.3.0 is vulnerable to a replay attack due to a missing nonce allowing...

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.

Record
GHSA-r6vr-q24x-m5gp
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-284
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-1000032 is a high vulnerability (CVSS 7.5) in Python Tgcaptcha2, published October 25, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.33%, the 71st percentile. No source names a fixed version.

References

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