CVE-2017-16804

CVE-2017-16804 is a medium-severity vulnerability in Redmine with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Redmine
Published: 2017-11-13
Last modified: 2026-06-17

Description

In Redmine before 3.2.7 and 3.3.x before 3.3.4, the reminders function in app/models/mailer.rb does not check whether an issue is visible, which allows remote authenticated users to obtain sensitive information by reading e-mail reminder messages.

Frequently asked questions

What is CVE-2017-16804?: In Redmine before 3.2.7 and 3.3.x before 3.3.4, the reminders function in app/models/mailer.rb does not check whether an issue is visible, which allows remote authenticated users to obtain sensitive information by reading e-mail reminder messages.
How severe is CVE-2017-16804?: CVE-2017-16804 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2017-16804 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16804?: CVE-2017-16804 primarily affects Redmine. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-16804?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-16804 published?: CVE-2017-16804 was published on 2017-11-13 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:redmine:redmine:*:*:*:*:*:*:*:*
cpe:2.3:a:redmine:redmine:3.3.0:*:*:*:*:*:*:*
cpe:2.3:a:redmine:redmine:3.3.1:*:*:*:*:*:*:*
cpe:2.3:a:redmine:redmine:3.3.2:*:*:*:*:*:*:*
cpe:2.3:a:redmine:redmine:3.3.3:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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