Cross-site scripting in pywb

MEDIO 6.1CVE-2021-39286 · GHSA-947x-pv47-pp3q · PYSEC-2021-120 · Published 18/08/2021 · updated 17/06/2026

In breve

CVE-2021-39286 è una vulnerabilità MEDIO (CVSS 6.1) che riguarda pywb, pywb (webrecorder).
Probabilità di sfruttamento nei prossimi 30 giorni (EPSS): 0.70%, superiore al 53.4% delle vulnerabilità.
Correzione: aggiornare a 2.6.0 o successiva.

Package	Affected versions	Patched versions
pywb PyPI	`< 2.6.0`	`2.6.0`
pywb webrecorder	`< 2.6.0`	`2.6.0`

Webrecorder pywb before 2.6.0 allows XSS because it does not ensure that Jinja2 templates are autoescaped.

NVD description

Webrecorder pywb before 2.6.0 allows XSS because it does not ensure that Jinja2 templates are autoescaped.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.