EEF-CVE-2026-42794
- Source
- https://cna.erlef.org/osv/EEF-CVE-2026-42794.html
- Import Source
- https://cna.erlef.org/osv/EEF-CVE-2026-42794.json
- JSON Data
- https://api.osv.dev/v1/vulns/EEF-CVE-2026-42794
- Aliases
-
- CVE-2026-42794
- GHSA-c62g-j346-39v5
- Published
- 2026-05-08T15:42:40.706Z
- Modified
- 2026-05-14T13:26:10.734271222Z
- Severity
-
- 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Reflected XSS via backslash bypass in GraphiQL js_escape in absinthe_plug
- Details
-
Summary
Improper Neutralization of Input During Web Page Generation (XSS) vulnerability in absinthe-graphql absinthe_plug allows reflected cross-site scripting via the GraphiQL interface.
'Elixir.Absinthe.Plug.GraphiQL':js_escape/1 in lib/absinthe/plug/graphiql.ex escapes single quotes and newlines in the query GET parameter before embedding it in an inline JavaScript string, but does not escape backslashes. An attacker can bypass the escaping by prefixing a quote with a backslash (e.g. \'), breaking out of the string context and executing arbitrary JavaScript in the victim's browser.
This issue affects absinthe_plug: from 1.2.0.
Configuration
The application must mount Absinthe.Plug.GraphiQL on a route that is reachable by untrusted users. The GraphiQL interface is a developer tool and is typically disabled or restricted in production deployments.
- Database specific
{ "capec_ids": [ "CAPEC-86" ], "cpe_ids": [ "cpe:2.3:a:absinthe-graphql:absinthe_plug:*:*:*:*:*:*:*:*" ], "cwe_ids": [ "CWE-79" ] }- References
- Credits
-
-
- 40826d - FINDER
-
- Bryan A. Enders - FINDER
-
- Leandro Moreno - REMEDIATION_DEVELOPER
-
- Ben Wilson - REMEDIATION_REVIEWER
-
Affected packages
Hex / absinthe_plug
Package
- Name
- absinthe_plug
- Purl
- pkg:hex/absinthe_plug