Stored cross-site scripting in PressBooks

MITTEL 4.8CVE-2021-3271 · GHSA-9652-78hp-w58c · Published 18/02/2021 · updated 17/06/2026

Kurz gesagt

CVE-2021-3271 ist eine Schwachstelle (MITTEL (CVSS 4.8)) in pressbooks/pressbooks, pressbooks (pressbooks).
Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.94%, höher als bei 61.2% aller Schwachstellen.
Abhilfe: auf 5.18.0 oder neuer aktualisieren.

Package	Affected versions	Patched versions
pressbooks/pressbooks Packagist	`< 5.18.0`	`5.18.0`
pressbooks pressbooks	`≤ 5.17.3`	No fix yet

Description

PressBooks 5.17.3 contains a cross-site scripting (XSS). Stored XSS can be submitted via the Book Info's Long Description Body, and all actions to open or preview the books page will result in the triggering the stored XSS.

NVD description

References

nvd.nist.gov/vuln/detail/CVE-2021-3271 · ADVISORY
pressbooks/pressbooks#2072 · WEB
pressbooks/pressbooks commit 941a8c5 · WEB
pressbooks/pressbooks · WEB
gosecure.net/blog/2021/02/16/cve-2021-3271-pressbooks-stored-cross-site-scripting-proof-of-concept · WEB
gosecure.net/blog/2021/02/16/cve-2021-3271-pressbooks-stored-cross-site-scripting-proof-of-concept · Exploit

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