XSS in Current Book Project

CVE-2021-24538

The Current Book WordPress plugin through 1.0.1 does not sanitize user input when an authenticated user adds Author or Book Title, then does not escape these values when outputting to the browser leading to an Authenticated Stored XSS Cross-Site Scripting issue.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (46.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-24538?
CVE-2021-24538 is a medium-severity vulnerability in Current Book Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-08-16.
How severe is CVE-2021-24538?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-24538 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.