What is CVE-2021-42549?

CVE-2021-42549 is a medium-severity vulnerability in Wp Cloud Plugins Lets-Box, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2021-12-13.

How severe is CVE-2021-42549?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Is CVE-2021-42549 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Wp Cloud Plugins Lets-Box

CVE-2021-42549

Insufficient Input Validation in the search functionality of Wordpress plugin Lets-Box prior to 1.15.3 allows unauthenticated user to craft a reflected Cross-Site Scripting attack.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (50.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N.

Affected products

Wp Cloud Plugins Lets-box — versions unspecified
Wpcloudplugins Lets-box

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

vulnerability@ncsc.ch (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-42549?: CVE-2021-42549 is a medium-severity vulnerability in Wp Cloud Plugins Lets-Box, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2021-12-13.
How severe is CVE-2021-42549?: Medium severity. CVSS v3 base score is 4.7 out of 10.
Is CVE-2021-42549 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.