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TI-2021-02292 Aliases CVE-2021-3271GHSA-9652-78hp-w58c

PressBooks 5.17.3 contains a cross-site scripting (XSS).

Priority LOW 24CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

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.

Why it matters now

EPSS 0.00943 61st percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed pressbooks/pressbooks (Packagist): 5.18.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—pressbooks/pressbooks (Packagist)before 5.18.05.18.0Patch availableGHSA-9652-78hp-w58c
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • pressbooks/pressbooks (Packagist) Vendor— Affected before 5.18.0 Fixed in 5.18.0 Patch available GHSA-9652-78hp-w58c

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pressbooks:pressbooks:*:*:*:*:*:*:*:*up to 5.17.3VulnerablePressbooks
  • cpe:2.3:a:pressbooks:pressbooks:*:*:*:*:*:*:*:* Versions up to 5.17.3 Vulnerable ·Pressbooks

Remediation

  • Fix · GHSA-9652-78hp-w58c pressbooks/pressbooks (Packagist) Fixed in 5.18.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3271
  2. 2026-10-03 Alias added: GHSA-9652-78hp-w58c

References

Exploit 2

Advisory 2

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences