What is CVE-2024-0254?

CVE-2024-0254 is a medium-severity vulnerability in Nomadcoder (Simply) Guest Author Name, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2024-02-05.

How severe is CVE-2024-0254?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Is CVE-2024-0254 known to be exploited?

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

XSS in Nomadcoder (Simply) Guest Author Name

CVE-2024-0254

The (Simply) Guest Author Name plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's post meta in all versions up to, and including, 4.34 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2024-02-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (41.3th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: -0.000

Affected products

Nomadcoder (Simply) Guest Author Name — versions 0
Shooflysolutions \(Simply\) Guest Author Name

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

www.wordfence.com/threat-intel/vulnerabilities/id/0e9e2864-6624-497f-8bec-df836… (Third Party Advisory)
plugins.trac.wordpress.org/browser/guest-author-name/trunk/sfly-guest-author.php (Issue Tracking)
plugins.trac.wordpress.org/changeset (Patch)

Frequently asked questions

What is CVE-2024-0254?: CVE-2024-0254 is a medium-severity vulnerability in Nomadcoder (Simply) Guest Author Name, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2024-02-05.
How severe is CVE-2024-0254?: Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2024-0254 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.