Answer in brief
CVE-2025-1647 records a Medium severity (CVSS 5.6) vulnerability in XSS in Bootstrap title attribute for Tooltip and Popover. The current sources do not mark it as known exploited. The current feed maps Bootstrap/Bootstrap (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Bootstrap/Bootstrap (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Bootstrap/Bootstrapgeneric | >=3.4.1 <4.0.0 | 4.0.0 |
Published upstream
May 15, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 9, 2026
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.
Quoted source text, attributed separately from HOL analysis.