How severe is CVE-2018-15669?

CVE-2018-15669 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2018-15669 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15669?

CVE-2018-15669 affects Bloop Airmail 3. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15669?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-15669 published?

CVE-2018-15669 was published on 2018-08-21 and last updated on 2026-06-17.

CVE-2018-15669

CVE-2018-15669 is a medium-severity vulnerability in Bloop Airmail 3 with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Bloop Airmail 3
Published: 2018-08-21
Last modified: 2026-06-17

Description

An issue was discovered in Bloop Airmail 3 3.5.9 for macOS. Its primary WebView instance implements "webView:decidePolicyForNavigationAction:request:frame:decisionListener:" such that requests from HTMLIFrameElements are blacklisted. However, other sub-classes of HTMLFrameOwnerElements are not forbidden by the policy. An attacker may abuse HTML plug-in elements within an email to trigger frame navigation requests that bypass this filter.

Frequently asked questions

What is CVE-2018-15669?: An issue was discovered in Bloop Airmail 3 3.5.9 for macOS. Its primary WebView instance implements "webView:decidePolicyForNavigationAction:request:frame:decisionListener:" such that requests from HTMLIFrameElements are blacklisted. However, other sub-classes of HTMLFrameOwnerElements are not forbidden by the policy. An attacker may abuse HTML plug-in elements within an email to trigger frame navigation requests that bypass this filter.
How severe is CVE-2018-15669?: CVE-2018-15669 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2018-15669 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15669?: CVE-2018-15669 affects Bloop Airmail 3. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15669?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-15669 published?: CVE-2018-15669 was published on 2018-08-21 and last updated on 2026-06-17.

References

https://versprite.com/advisories/airmail-3-for-mac-3/

Affected products (1)

cpe:2.3:a:bloop:airmail_3:3.5.9:*:*:*:*:macos:*:*

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