What is CVE-2024-8239?

CVE-2024-8239 is a medium-severity vulnerability in Squirrly Starbox, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-09-30.

How severe is CVE-2024-8239?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2024-8239 known to be exploited?

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

XSS in Squirrly Starbox

CVE-2024-8239

The Starbox WordPress plugin before 3.5.3 does not properly render social media profiles URLs in certain contexts, like the malicious user's profile or pages where the starbox shortcode is used, which may be abused by users with at least the contributor role to conduct Stored XSS attacks.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2024-09-30 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.004 (29.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Squirrly Starbox
Starbox — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

wpscan.com/vulnerability/02796da0-218d-4cbb-98ca-49eeea83cac5/ (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2024-8239?: CVE-2024-8239 is a medium-severity vulnerability in Squirrly Starbox, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-09-30.
How severe is CVE-2024-8239?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2024-8239 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.