What is CVE-2023-4687?

CVE-2023-4687 is a medium-severity vulnerability in Pagelayer, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 6.1/10. Published 2023-10-16.

How severe is CVE-2023-4687?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2023-4687 known to be exploited?

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

Vulnerability in Pagelayer

CVE-2023-4687

The Page Builder: Pagelayer WordPress plugin before 1.7.7 doesn't prevent unauthenticated attackers from updating a post's header or footer code on scheduled posts.

Published 2023-10-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (37.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.0% 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

Pagelayer
Page Builder: Pagelayer — versions 1.3.2

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/31596fc5-4203-40c4-9b0a-e8a37faafddd (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2023-4687?: CVE-2023-4687 is a medium-severity vulnerability in Pagelayer, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 6.1/10. Published 2023-10-16.
How severe is CVE-2023-4687?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2023-4687 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.