CVE-2022-28923: caddyserver caddy Open Redirect
CVSS: 6.1v3.1MediumModified
AliasesDEBIAN-CVE-2022-28923CGA-6j9r-q99r-9pw9CGA-cx9h-63j7-3mw2CGA-h4g8-wrq5-vfvxCGA-j2g5-5jgv-jx33CGA-mqx8-x5qp-hv9vCGA-vj26-jw6v-p9jfGHSA-qpm3-vr34-h8w8GO-2023-1567CGA-2w79-3qrv-hhm2CGA-9x92-pmx5-f8wc
Published 06-02-2023Last modified 26-03-2025
Vulnerability summary
CVE-2022-28923 is a medium (CVSS 6.1) Open Redirect vulnerability in caddyserver caddy. EPSS estimates a 1.43% chance of exploitation in the next 30 days, higher than 72.6% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)EPSS score
1.43%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 0 · Related 3Timeline
- 06-02-2023PublishedVulnerability first disclosed.
- 26-03-2025Last modifiedVulnerability information updated.
Description
Caddy v2.4.6 was discovered to contain an open redirection vulnerability which allows attackers to redirect users to phishing websites via crafted URLs.
CVSS metrics
6 scores · 6 sources · 1 versionMedium 6.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesAll 6 agree
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · WolfiEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · GoEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · ChainguardEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- NVDNIST6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
1.43%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
0.00 pp
From 1.43% on 20-09-2026
20-09-202620-10-2026
EPSS score1.43%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (lednerb.de)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Chainguard4 products
- caddyAll versions (No fix recorded)
- caddy-fipsAll versions (No fix recorded)
- caddy-manAll versions (No fix recorded)
- caddy-srcAll versions (No fix recorded)
Wolfi3 products
- caddyAll versions (No fix recorded)
- caddy-manAll versions (No fix recorded)
- caddy-srcAll versions (No fix recorded)
Caddyserver1 product
- caddy2.4.6
Debian1 product
- caddy< 2.5.2-1
Github.com/caddyserver/caddy1 product
- v2< 2.5.0-beta.1
5 vendors · 10 products
References
9 links- lednerb.de/en/publications/responsible-disclosure/caddy-open-redirect-vulnerability/WEBExploitPatchThird Party Advisory
- github.com/caddyserver/caddyPACKAGE