What is CVE-2023-4271?

CVE-2023-4271 is a medium-severity vulnerability in Deanoakley Photospace Responsive Gallery, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2023-10-20.

How severe is CVE-2023-4271?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Is CVE-2023-4271 known to be exploited?

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

XSS in Deanoakley Photospace Responsive Gallery

CVE-2023-4271

The Photospace Responsive plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘psres_button_size’ parameter in versions up to, and including, 2.1.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-10-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (39.4th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.4% 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: 0.005 · change: +0.001

Affected products

Deanoakley Photospace Responsive Gallery — versions 0
Deanoakley Photospace Responsive Gallery

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

www.wordfence.com/threat-intel/vulnerabilities/id/3bc98896-6ff9-40de-ace2-2ca33… (Patch, Third Party Advisory)
plugins.trac.wordpress.org/changeset/2831424/photospace-responsive/trunk/includ… (Patch)
plugins.trac.wordpress.org/changeset (Patch)

Frequently asked questions

What is CVE-2023-4271?: CVE-2023-4271 is a medium-severity vulnerability in Deanoakley Photospace Responsive Gallery, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2023-10-20.
How severe is CVE-2023-4271?: Medium severity. CVSS v3 base score is 4.4 out of 10.
Is CVE-2023-4271 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.