CVE-2018-3769 json
grape subject to Cross-site Scripting
published 2018-07-05 8 y ago modified 2026-06-17 4 mo ago also GHSA-f599-5m7p-hcpf , EUVD-2018-0396
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
ruby-grape ruby gem suffers from a cross-site scripting (XSS) vulnerability via "format" parameter.
Patch / fix
- rubygems grape 1.1.0
- ruby-grape Debian 12 1.1.0-1
debian advisories DEBIAN-CVE-2018-3769
- github.com/ruby-grape/grape@6876b71 commit
- github.com/ruby-grape/grape#1763 pull request
Exploit prediction
1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/ruby-grape/grape/issues/1762 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | grape | <1.1.0 |
1.1.0 |
Affected products
- Ruby Grape ruby-grape ruby gem
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/ruby-grape/grape/commit/6876b71efc7b03f7ce1be3f075eaa4e7e6de19af
web, patch, third-party-advisory
-
github.com
/ruby-grape/grape/pull/1763
web, third-party-advisory
-
github.com
/ruby-grape/grape/issues/1762
web, exploit, issue-tracking, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2018-3769
advisory
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/grape/CVE-2018-3769.yml
web
Sources
- CVE List CVE-2018-3769
- GitHub Advisory GHSA-f599-5m7p-hcpf
- NVD CVE-2018-3769
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.