CVE-2019-14282 json
Code backdoor in simple_captcha2
published 2019-07-26 7 y ago modified 2026-06-17 4 mo ago also GHSA-wg6j-r28m-7293 , EUVD-2019-0606
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.1%
- EPSS 3.1% chance of exploitation in 30 days, percentile 87%
- public exploits
- 0
- none known
Summary
The simple_captcha2 gem 0.2.3 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party.
Exploit prediction
3.12% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | simple_captcha2 | 1 listed version |
no fix listed |
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
References
-
github.com
/rubygems/rubygems.org/issues/2073
web, third-party-advisory
-
rubygems.org
/gems/simple_captcha2/versions/
third-party-advisory
- snyk.io /vuln/SNYK-RUBY-SIMPLECAPTCHA2-455501
-
nvd.nist.gov
/vuln/detail/CVE-2019-14282
advisory
-
github.com
/pludoni/simple-captcha
package
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/simple_captcha2/CVE-2019-14282.yml
web
-
rubygems.org
/gems/simple_captcha2/versions
web
-
security.snyk.io
/vuln/SNYK-RUBY-SIMPLECAPTCHA2-455501
web
Sources
- CVE List CVE-2019-14282
- GitHub Advisory GHSA-wg6j-r28m-7293
- NVD CVE-2019-14282
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.