What is CVE-2023-3084?

CVE-2023-3084 is a high-severity vulnerability in Nilsteampassnet Nilsteampassnet/teampass, classified under Cross-site Scripting. CVSS score: 8.1/10. Published 2023-06-03.

How severe is CVE-2023-3084?

High severity. CVSS v3 base score is 8.1 out of 10.

Is CVE-2023-3084 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Nilsteampassnet Nilsteampassnet/teampass

CVE-2023-3084

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 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Nilsteampassnet Nilsteampassnet/teampass — versions unspecified
Teampass

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

huntr.dev/bounties/4b86b56b-c51b-4be8-8ee4-6e385d1e9e8a (Exploit, Patch, Third Party Advisory)
github.com/nilsteampassnet/teampass/commit/61b9b7d4e33bbaad2cd61a7ee988f9c22298… (Patch)

Frequently asked questions

What is CVE-2023-3084?: CVE-2023-3084 is a high-severity vulnerability in Nilsteampassnet Nilsteampassnet/teampass, classified under Cross-site Scripting. CVSS score: 8.1/10. Published 2023-06-03.
How severe is CVE-2023-3084?: High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2023-3084 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.