What is CVE-2023-28733?

CVE-2023-28733 is a high-severity vulnerability in Acymailing, classified under Improper Input Validation. CVSS score: 7.2/10. Published 2023-03-30.

How severe is CVE-2023-28733?

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

XSS in Acymailing

CVE-2023-28733

AnyMailing Joomla Plugin is vulnerable to stored cross site scripting (XSS) in templates and emails of AcyMailing, exploitable without authentication when access is granted to the campaign's creation on front-office. This issue affects AnyMailing Joomla Plugin Enterprise in versions below 8.3.0.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2023-03-30 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.004 (28.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.4% 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: 0.004 · change: 0.000

Affected products

Acymailing
Acymailing Newsletter Plugin For Joomla In The Enterprise Version — versions 0

Weakness classification (CWE)

References

www.acymailing.com/change-log/ (Release Notes)
www.bugbounty.ch/advisories/CVE-2023-28733 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-28733?: CVE-2023-28733 is a high-severity vulnerability in Acymailing, classified under Improper Input Validation. CVSS score: 7.2/10. Published 2023-03-30.
How severe is CVE-2023-28733?: High severity. CVSS v3 base score is 7.2 out of 10.