Moderate severityNVD Advisory· Published Jan 22, 2021· Updated Aug 3, 2024
CVE-2021-3271
CVE-2021-3271
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pressbooks/pressbooksPackagist | < 5.18.0 | 5.18.0 |
Affected products
2- PressBooks/PressBooksdescription
Patches
Vulnerability mechanics
Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
6- github.com/advisories/GHSA-9652-78hp-w58cghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-3271ghsaADVISORY
- github.com/pressbooks/pressbooks/commit/941a8c5eaeacea5eb211b54ee55bc0348139cbd8ghsaWEB
- github.com/pressbooks/pressbooks/pull/2072ghsax_refsource_MISCWEB
- www.gosecure.net/blog/2021/02/16/cve-2021-3271-pressbooks-stored-cross-site-scripting-proof-of-conceptghsaWEB
- www.gosecure.net/blog/2021/02/16/cve-2021-3271-pressbooks-stored-cross-site-scripting-proof-of-concept/mitrex_refsource_MISC
News mentions
0No linked articles in our index yet.