What is CVE-2023-4284?

CVE-2023-4284 is a medium-severity vulnerability in Agilelogix Post Timeline, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 6.1/10. Published 2023-09-04.

How severe is CVE-2023-4284?

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

Is CVE-2023-4284 known to be exploited?

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

Vulnerability in Agilelogix Post Timeline

CVE-2023-4284

The Post Timeline WordPress plugin before 2.2.6 does not sanitise and escape an invalid nonce before outputting it back in an AJAX response, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

Published 2023-09-04 · 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: 0.008 (53.6th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Agilelogix Post Timeline
Post Timeline — versions 0

Public proof-of-concept exploits

References

wpscan.com/vulnerability/1c126869-0afa-456f-94cc-10334964e5f9 (technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2023-4284?: CVE-2023-4284 is a medium-severity vulnerability in Agilelogix Post Timeline, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 6.1/10. Published 2023-09-04.
How severe is CVE-2023-4284?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2023-4284 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.