CRITICAL
The simple_captcha2 gem 0.2.3 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party
Published Jul 26, 2019
9.8
CRITICALCVSS 3.0
EPSS 3.12%
Description
The simple_captcha2 gem 0.2.3 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party.
Affected products
No data.
- 0.2.3
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.12% 0.03115
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.03115
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 3.12% (0.03115) | 87.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.12% (0.03115) | 86.07th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.43% (0.01431) | 78.86th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.98% (0.04976) | 82.43th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.91% (0.00905) | 82.94th | v3 (v2023.03.01) |
| Jul 19, 2024 | 0.91% (0.00905) | 82.94th | v3 (v2023.03.01) |
| Jun 16, 2024 | 0.92% (0.00925) | 83.03th | v3 (v2023.03.01) |
| Jun 15, 2024 | 0.82% (0.00822) | 81.97th | v3 (v2023.03.01) |
| Oct 21, 2023 | 0.82% (0.00822) | 79.97th | v3 (v2023.03.01) |
| May 30, 2023 | 1.16% (0.01162) | 82.87th | v3 (v2023.03.01) |
| May 15, 2023 | 1.01% (0.01008) | 81.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.96% (0.00963) | 80.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.51% (0.02509) | 81.86th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.51% (0.02509) | 80.08th | v2 (v2022.01.01) |
| Feb 4, 2022 | 21.55% (0.21550) | 94.22th | v2 (v2022.01.01) |
| Feb 3, 2022 | 6.22% (0.06225) | 82.33th | v1 |
| Jan 6, 2022 | 6.22% (0.06225) | 82.16th | v1 |
| Sep 1, 2021 | 1.46% (0.01458) | 72.29th | v1 |
| Apr 14, 2021 | 1.46% (0.01458) | 0.00th | v1 |
Weaknesses (1)
References (7)
- https://github.com/advisories/GHSA-wg6j-r28m-7293 Advisory
- https://github.com/rubygems/rubygems.org/issues/2073 x_refsource_MISCThird Party Advisory
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/simple_captcha2/CVE-2019-14282.yml
- https://nvd.nist.gov/vuln/detail/CVE-2019-14282
- https://rubygems.org/gems/simple_captcha2/versions/ x_refsource_MISCThird Party Advisory
- https://security.snyk.io/vuln/SNYK-RUBY-SIMPLECAPTCHA2-455501
- https://snyk.io/vuln/SNYK-RUBY-SIMPLECAPTCHA2-455501 x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-wg6j-r28m-7293 | Advisory | |
| https://github.com/rubygems/rubygems.org/issues/2073 | x_refsource_MISCThird Party Advisory | |
| https://github.com/rubysec/ruby-advisory-db/blob/master/gems/simple_captcha2/CVE-2019-14282.yml | ||
| https://nvd.nist.gov/vuln/detail/CVE-2019-14282 | ||
| https://rubygems.org/gems/simple_captcha2/versions/ | x_refsource_MISCThird Party Advisory | |
| https://security.snyk.io/vuln/SNYK-RUBY-SIMPLECAPTCHA2-455501 | ||
| https://snyk.io/vuln/SNYK-RUBY-SIMPLECAPTCHA2-455501 | x_refsource_MISC |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jul 26, 2019
Updated Aug 5, 2024
Reserved Jul 26, 2019
Link CVE-2019-14282
CISA Vulnrichment
GHSA-WG6J-R28M-7293 Updated n/a