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Fencer Vulns
medium 5.4

CVE-2024-8239 json

Starbox < 3.5.3 - Contributor+ Stored XSS

published 2024-09-30 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-49041

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

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.

Patch / fix

  • Unknown Starbox 3.5.3
  • squirrlyuk starbox 3.5.3

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/02796da0-218d-4cbb-98ca-49eeea83cac5/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

  • Unknown Starbox
  • squirrlyuk starbox

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.