What is CVE-2022-29890?

CVE-2022-29890 is a medium-severity vulnerability in Octopus Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-07-15.

How severe is CVE-2022-29890?

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

XSS in Octopus Server

CVE-2022-29890

In affected versions of Octopus Server the help sidebar can be customized to include a Cross-Site Scripting payload in the support link.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-07-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (36.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000

Affected products

Octopus Server — versions 2022.2.6729
Octopus Deploy Server — versions 2019.7.0, unspecified, 2022.1.2121

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

advisories.octopus.com/post/2022/sa2022-07/ (Vendor Advisory)

Frequently asked questions

What is CVE-2022-29890?: CVE-2022-29890 is a medium-severity vulnerability in Octopus Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-07-15.
How severe is CVE-2022-29890?: Medium severity. CVSS v3 base score is 6.1 out of 10.