XSS in Imageboss

CVE-2021-24888

The ImageBoss WordPress plugin before 3.0.6 does not sanitise and escape its Source Name setting, which could allow high privilege users to perform Cross-Site Scripting attacks

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (48.6th 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

  • Imageboss
  • Unknown Imageboss – Images Up To 60% Smaller & Cdn — versions 3.0.6

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-24888?
CVE-2021-24888 is a medium-severity vulnerability in Imageboss, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-11-23.
How severe is CVE-2021-24888?
Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2021-24888 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.