CVE-2023-3170: tagDiv Composer < 4.2 - Admin+ Stored XSS

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-09-11 · updated 2026-06-17
Weakness: CWE-79

Description

The tagDiv Composer WordPress plugin before 4.2, used as a companion by the Newspaper and Newsmag themes from tagDiv, does not validate and escape some settings, which could allow users with Admin privileges to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Affected products

tagDiv Composer: before 4.2 — fixed in 4.2

How to fix

Upgrade to a fixed version: tagDiv Composer 4.2. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/e95ff3c6-283b-4e5e-bea0-1f1375da08da
https://wpscan.com/vulnerability/e95ff3c6-283b-4e5e-bea0-1f1375da08da

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