XSS in Pressbooks
CVE-2021-3271
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.009 (57.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Pressbooks
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-3271?
- CVE-2021-3271 is a medium-severity vulnerability in Pressbooks, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-02-18.
- How severe is CVE-2021-3271?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2021-3271 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.