CVE-2023-0233: ActiveCampaign < 8.1.12 - Contributor+ Stored XSS

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-05-15 · updated 2026-06-17

Description

The ActiveCampaign WordPress plugin before 8.1.12 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Affected products

ActiveCampaign: before 8.1.12 — fixed in 8.1.12

How to fix

Upgrade to a fixed version: ActiveCampaign 8.1.12. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/e95c85fd-fa47-45bd-b8e0-a7f33edd7130
https://wpscan.com/vulnerability/e95c85fd-fa47-45bd-b8e0-a7f33edd7130

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