XSS in Octopus Server

CVE-2022-4898

In affected versions of Octopus Server the help sidebar can be customized to include a Cross-Site Scripting payload in the support link. This was initially resolved in advisory 2022-07 however it was identified that the fix could be bypassed in certain circumstances. A different approach was taken to prevent the possibility of the support link being susceptible to XSS

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-4898: held from 0.004 to 0.004.

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

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-4898?
CVE-2022-4898 is a medium-severity vulnerability in Octopus Server, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-01-31.
How severe is CVE-2022-4898?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2022-4898 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.