What is CVE-2015-9058?

CVE-2015-9058 is a medium-severity vulnerability in Proxmox Mail Gateway, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2017-05-03.

How severe is CVE-2015-9058?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2015-9058 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Open Redirect in Proxmox Mail Gateway

CVE-2015-9058

Open redirect vulnerability in Proxmox Mail Gateway prior to hotfix 4.0-8-097d26a9 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via the destination parameter.

Vulnerability class: Open Redirect

Published 2017-05-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Proxmox Mail Gateway

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-024/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2015-9058?: CVE-2015-9058 is a medium-severity vulnerability in Proxmox Mail Gateway, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2017-05-03.
How severe is CVE-2015-9058?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2015-9058 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.