Devise Token Auth vulnerable to Cross-site Scripting

published 2019-09-24 7 y ago modified 2026-06-17 4 mo ago also GHSA-mvqr-r76c-wm5f , EUVD-2022-4629

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits: 0; none known

An issue was discovered in Devise Token Auth through 1.1.2. The omniauth failure endpoint is vulnerable to Reflected Cross Site Scripting (XSS) through the message parameter. Unauthenticated attackers can craft a URL that executes a malicious JavaScript payload in the victim's browser. This affects the fallback_render method in the omniauth callbacks controller.

Patch / fix

fixed in 1

rubygems devise_token_auth 1.1.3

Exploit prediction

0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/lynndylanhurley/devise_token_auth/issues/1332 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	devise_token_auth	>=0.1.33, <1.1.3	1.1.3

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /lynndylanhurley/devise_token_auth/issues/1332
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2019-16751
advisory
github.com /lynndylanhurley/devise_token_auth
package
github.com /rubysec/ruby-advisory-db/blob/master/gems/devise_token_auth/CVE-2019-16751.yml
web

Sources

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.

Summary