What is CVE-2023-4308?

CVE-2023-4308 is a high-severity vulnerability in Plugin-Planet User Submitted Posts, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2023-08-15.

How severe is CVE-2023-4308?

High severity. CVSS v3 base score is 7.2 out of 10.

Is CVE-2023-4308 known to be exploited?

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

XSS in Plugin-Planet User Submitted Posts

CVE-2023-4308

The User Submitted Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘user-submitted-content’ parameter in versions up to, and including, 20230809 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (28.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

security@wordfence.com (Third Party Advisory)
security@wordfence.com (Patch)

Frequently asked questions

What is CVE-2023-4308?: CVE-2023-4308 is a high-severity vulnerability in Plugin-Planet User Submitted Posts, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2023-08-15.
How severe is CVE-2023-4308?: High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2023-4308 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.