How severe is CVE-2019-15507?

CVE-2019-15507 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-15507 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15507?

CVE-2019-15507 affects Octopus Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15507?

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

When was CVE-2019-15507 published?

CVE-2019-15507 was published on 2019-08-23 and last updated on 2026-06-17.

CVE-2019-15507

CVE-2019-15507 is a medium-severity vulnerability in Octopus Server with a CVSS 3.x base score of 6.5. 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-312.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 3.5
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-312
Affected product: Octopus Server
Published: 2019-08-23
Last modified: 2026-06-17

Description

In Octopus Deploy versions 2018.8.4 to 2019.7.6, when a web request proxy is configured, an authenticated user (in certain limited special-characters circumstances) could trigger a deployment that writes the web request proxy password to the deployment log in cleartext. This is fixed in 2019.7.7. The fix was back-ported to LTS 2019.6.7 as well as LTS 2019.3.8.

Frequently asked questions

What is CVE-2019-15507?: In Octopus Deploy versions 2018.8.4 to 2019.7.6, when a web request proxy is configured, an authenticated user (in certain limited special-characters circumstances) could trigger a deployment that writes the web request proxy password to the deployment log in cleartext. This is fixed in 2019.7.7. The fix was back-ported to LTS 2019.6.7 as well as LTS 2019.3.8.
How severe is CVE-2019-15507?: CVE-2019-15507 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-15507 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15507?: CVE-2019-15507 affects Octopus Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15507?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-15507 published?: CVE-2019-15507 was published on 2019-08-23 and last updated on 2026-06-17.

References

https://github.com/OctopusDeploy/Issues/issues/5761

Affected products (1)

cpe:2.3:a:octopus:server:*:*:*:*:*:*:*:*

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