CVE-2024-13313: AWeber <= 7.3.20 - Admin+ Stored XSS

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-05-15 · updated 2026-06-17
Weakness: CWE-79

Description

The AWeber WordPress plugin through 7.3.20 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Affected products

AWeber – Free Sign Up Form and Landing Page Builder Plugin for Lead Generation and Email Newsletter Growth: before 7.3.21 — fixed in 7.3.21

How to fix

Upgrade to a fixed version: AWeber – Free Sign Up Form and Landing Page Builder Plugin for Lead Generation and Email Newsletter Growth 7.3.21. Check the vendor advisory for mitigations.

References

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