XSS in Business Hours Indicator Project

CVE-2021-24593

The Business Hours Indicator WordPress plugin before 2.3.5 does not sanitise or escape its 'Now closed message" setting when outputting it in the backend and frontend, leading to an Authenticated Stored 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-2021-24593?
CVE-2021-24593 is a medium-severity vulnerability in Business Hours Indicator Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-08-30.
How severe is CVE-2021-24593?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-24593 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.