What is CVE-2025-45286?

CVE-2025-45286 is a medium-severity vulnerability in Httpbingo Go-Httpbin, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.1/10. Published 2026-01-02.

How severe is CVE-2025-45286?

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

XSS in Httpbingo Go-Httpbin

CVE-2025-45286

A cross-site scripting (XSS) vulnerability in mccutchen httpbin v2.17.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

Published 2026-01-02 · 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: 0.003 (17.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000

Affected products

Httpbingo Go-Httpbin

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References

github.com/mccutchen/go-httpbin/security/advisories/GHSA-528q-4pgm-wvg2 (Vendor Advisory)
github.com/advisories/GHSA-528q-4pgm-wvg2 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2025-45286?: CVE-2025-45286 is a medium-severity vulnerability in Httpbingo Go-Httpbin, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.1/10. Published 2026-01-02.
How severe is CVE-2025-45286?: Medium severity. CVSS v3 base score is 6.1 out of 10.