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Fencer Vulns
medium 6.1

CVE-2022-28923 json

Open Redirect in Caddy

published 2023-02-06 3 y ago modified 2026-09-10 1 mo ago also GHSA-qpm3-vr34-h8w8 , GO-2023-1567 , EUVD-2023-0778

cvss
6.1
version 3.1, CNA
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, plus a Nuclei check

Summary

Caddy v2.4.6 was discovered to contain an open redirection vulnerability which allows attackers to redirect users to phishing websites via crafted URLs.

Patch / fix

  • go github.com/caddyserver/caddy/v2 2.5.0-beta.1
  • caddy Debian 14, Debian 13, Debian 12 2.5.2-1

debian advisories DEBIAN-CVE-2022-28923

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-28923 updated cvss 7.5

caddy: an open redirection vulnerability which allows attackers to redirect users to phishing websites via crafted URLs

  • Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-velero-rhel8, rhmtc/openshift-migration-velero-plugin-for-gcp-rhel8, rhmtc/openshift-migration-velero-restic-restore-helper-rhel8, rhmtc/openshift-migration-velero-plugin-for-microsoft-azure-rhel8 Red Hat OpenShift API for Data Protection oadp/oadp-velero-rhel9, oadp/oadp-velero-plugin-for-aws-rhel8, oadp/oadp-velero-plugin-for-gcp-rhel9, oadp/oadp-velero-restic-restore-helper-rhel8, oadp/oadp-velero-plugin-for-microsoft-azure-rhel8 Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/lighthouse-agent-rhel9, rhacm2/rbac-query-proxy-rhel8, rhacm2/metrics-collector-rhel8, rhacm2/lighthouse-coredns-rhel8, rhacm2/cluster-backup-rhel8-operator, rhacm2/grafana-dashboard-loader-rhel8, +6 more Red Hat OpenShift Container Platform 4 openshift4/ose-pod, openshift4/ose-tests, csi-driver-nfs-container, openshift4/ose-hyperkube, openshift4/ose-installer, openshift4/ose-sdn-rhel9, +56 more Red Hat Openshift Data Foundation 4 odf4/cephcsi-rhel9, odf4/odf-multicluster-rhel9-operator Red Hat OpenShift GitOps openshift-gitops-1/argocd-rhel8, openshift-gitops-1/applicationset-rhel8, openshift-gitops-1/gitops-rhel8-operator
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
19 mo ago

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

  • Nuclei template Caddy 2.4.6 - Open Redirect nuclei detection template
  • lednerb.de https://lednerb.de/en/publications/responsible-disclosure/caddy-open-redirect-vulnerability/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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
go github.com/caddyserver/caddy/v2
<2.5.0-beta.1
2.5.0-beta.1

Classification

Weakness
  • CWE-601 URL Redirection to Untrusted Site

References

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.