What is CVE-2023-3086?

CVE-2023-3086 is a critical-severity vulnerability in Nilsteampassnet Nilsteampassnet/teampass, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2023-06-03.

How severe is CVE-2023-3086?

Critical severity. CVSS v3 base score is 9.0 out of 10.

XSS in Nilsteampassnet Nilsteampassnet/teampass

CVE-2023-3086

Cross-site Scripting (XSS) - Stored in GitHub repository nilsteampassnet/teampass prior to 3.0.9.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-06-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Nilsteampassnet Nilsteampassnet/teampass — versions unspecified
Teampass

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

huntr.dev/bounties/17be9e8a-abe8-41db-987f-1d5b0686ae20 (Exploit, Patch, Third Party Advisory)
github.com/nilsteampassnet/teampass/commit/1c0825b67eb8f8b5ecc418ff7614423a275e… (Patch)

Frequently asked questions

What is CVE-2023-3086?: CVE-2023-3086 is a critical-severity vulnerability in Nilsteampassnet Nilsteampassnet/teampass, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2023-06-03.
How severe is CVE-2023-3086?: Critical severity. CVSS v3 base score is 9.0 out of 10.