What is CVE-2023-3191?

CVE-2023-3191 is a medium-severity vulnerability in Nilsteampassnet Nilsteampassnet/teampass, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-06-10.

How severe is CVE-2023-3191?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Nilsteampassnet Nilsteampassnet/teampass

CVE-2023-3191

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

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-06-10 · last modified 2026-06-17.

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: 0.005 (43.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

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

Affected products

Nilsteampassnet Nilsteampassnet/teampass — versions unspecified
Teampass

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

huntr.dev/bounties/19fed157-128d-4bfb-a30e-eadf748cbd1a (Exploit, Patch, Third Party Advisory)
github.com/nilsteampassnet/teampass/commit/241dbd4159a5d63b55af426464d30dbb5392… (Patch)

Frequently asked questions

What is CVE-2023-3191?: CVE-2023-3191 is a medium-severity vulnerability in Nilsteampassnet Nilsteampassnet/teampass, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-06-10.
How severe is CVE-2023-3191?: Medium severity. CVSS v3 base score is 5.4 out of 10.