CVE-2021-3271: Stored cross-site scripting in PressBooks

medium Affects pressbooks/pressbooks. Feed 2026.10.29.1, updated 2026-10-28; published 2021-03-29; advisory modified 2024-02-17.

Stored cross-site scripting in PressBooks

Package: pressbooks/pressbooks Composer
Affected versions: <5.18.0
Fixed in: 5.18.0
Severity: medium CVSS 4.8
Exploitation: not on CISA KEV · EPSS 1% (60.9th percentile)
Published: 2021-03-29
Source: osv.dev

References

CWE-79

NVD record pressbooks/pressbooks advisories

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