Open Redirect

published 2018-08-08 8 y ago modified 2026-06-17 4 mo ago also GHSA-cpgw-2wxr-pww3 , GO-2022-0822 , EUVD-2021-1312

cvss: 6.1; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

Open redirect vulnerability in Gogs before 0.12 allows remote attackers to redirect users to arbitrary websites and conduct phishing attacks via an initial /\ substring in the user/login redirect_to parameter, related to the function isValidRedirect in routes/user/auth.go.

Patch / fix

fixed in 2 links 2

go gogs.io/gogs 0.12.0
gogs gogs 0.12

github.com/gogs/gogs@1f247cf commit
github.com/gogs/gogs#5365 pull request

Exploit prediction

1.32% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/gogs/gogs/issues/5364 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.1	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	5.8	AV:N/AC:M/Au:N/C:P/I:P/A:N
GitHub	3.0	6.1	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
go	gogs.io/gogs	<0.12.0	0.12.0

Classification

Weakness

CWE-601 URL Redirection to Untrusted Site

References

github.com /gogs/gogs/pull/5365
web, third-party-advisory
github.com /gogs/gogs/commit/1f247cf8139cb483276cd8dd06385a800ce9d4b2
web
github.com /gogs/gogs/issues/5364
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2018-15178
advisory
github.com /advisories/GHSA-cpgw-2wxr-pww3
advisory

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