CVE-2022-4507: Real Cookie Banner < 3.4.10 - 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: 2023-01-16 · updated 2026-06-17

Description

The Real Cookie Banner WordPress plugin before 3.4.10 does not validate and escapes some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as a contributor to perform Stored Cross-Site Scripting attacks against logged-in admins.

Affected products

WordPress Real Cookie Banner: GDPR (DSGVO) & ePrivacy Cookie Consent: before 3.4.10 — fixed in 3.4.10

How to fix

Upgrade to a fixed version: WordPress Real Cookie Banner: GDPR (DSGVO) & ePrivacy Cookie Consent 3.4.10. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/93c61a70-5624-4c4d-ac3a-c598aec4f8b6
https://wpscan.com/vulnerability/93c61a70-5624-4c4d-ac3a-c598aec4f8b6

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