Vulnerability Details : 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 category: Cross site scripting (XSS)
Exploit prediction scoring system (EPSS) score for CVE-2021-3271
Probability of exploitation activity in the next 30 days: 0.06%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 25 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-3271
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST |
|
4.8
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
1.7
|
2.7
|
NIST |
CWE ids for CVE-2021-3271
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-3271
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https://www.gosecure.net/blog/2021/02/16/cve-2021-3271-pressbooks-stored-cross-site-scripting-proof-of-concept/
CVE-2021-3271 Pressbooks Stored Cross Site Scripting Proof of Concept | GoSecureExploit;Third Party Advisory
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https://github.com/pressbooks/pressbooks/pull/2072
Fix XSS security vulnerability by arzola · Pull Request #2072 · pressbooks/pressbooks · GitHubExploit;Third Party Advisory
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https://github.com/pressbooks/pressbooks
GitHub - pressbooks/pressbooks: Open publishing. Open web. Open source.Third Party Advisory
Products affected by CVE-2021-3271
- cpe:2.3:a:pressbooks:pressbooks:*:*:*:*:*:*:*:*