How severe is CVE-2023-28733?

CVE-2023-28733 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-28733 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28733?

CVE-2023-28733 affects Acymailing. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-28733?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-28733 published?

CVE-2023-28733 was published on 2023-03-30 and last updated on 2026-06-17.

CVE-2023-28733

CVE-2023-28733 is a high-severity vulnerability in Acymailing with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Acymailing
Published: 2023-03-30
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2023-28733?: CVE-2023-28733 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-28733 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28733?: CVE-2023-28733 affects Acymailing. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-28733?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-28733 published?: CVE-2023-28733 was published on 2023-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:acymailing:acymailing:*:*:*:*:*:joomla\!:*:*

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