Stored cross-site scripting in PressBooks

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

In breve

CVE-2021-3271 è una vulnerabilità MEDIO (CVSS 4.8) che riguarda pressbooks/pressbooks, pressbooks (pressbooks).
Probabilità di sfruttamento nei prossimi 30 giorni (EPSS): 0.94%, superiore al 61.2% delle vulnerabilità.
Correzione: aggiornare a 5.18.0 o successiva.

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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