What is CVE-2025-1647?

CVE-2025-1647 is a medium-severity vulnerability in Bootstrap, classified under Cross-site Scripting. CVSS score: 5.6/10. Published 2025-05-15.

How severe is CVE-2025-1647?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Is CVE-2025-1647 known to be exploited?

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

XSS in Bootstrap

CVE-2025-1647

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Bootstrap allows Cross-Site Scripting (XSS).This issue affects Bootstrap: from 3.4.1 before 4.0.0.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (17.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Bootstrap — versions 3.4.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

w4zu/Debian_

References

Frequently asked questions

What is CVE-2025-1647?: CVE-2025-1647 is a medium-severity vulnerability in Bootstrap, classified under Cross-site Scripting. CVSS score: 5.6/10. Published 2025-05-15.
How severe is CVE-2025-1647?: Medium severity. CVSS v3 base score is 5.6 out of 10.
Is CVE-2025-1647 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.