CVE-2022-0661: Ad Injection <= 1.2.0.19 - Admin+ Stored Cross-Site Scripting & RCE

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 40.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-04-18 · updated 2026-06-17
Weakness: CWE-94

Description

The Ad Injection WordPress plugin through 1.2.0.19 does not properly sanitize the body of the adverts injected into the pages, allowing a high privileged user (Admin+) to inject arbitrary HTML or javascript even with unfiltered_html disallowed, leading to a stored cross-site scripting (XSS) vulnerability. Further it is also possible to inject PHP code, leading to a Remote Code execution (RCE) vulnerability, even if the DISALLOW_FILE_EDIT and DISALLOW_FILE_MOD constants are both set.

Affected products

Ad Injection: through 1.2.0.19

References

https://wpscan.com/vulnerability/3c5a7b03-d4c3-46b9-af65-fb50e58b0bfd
https://wpscan.com/vulnerability/3c5a7b03-d4c3-46b9-af65-fb50e58b0bfd

Get alerted when CVE-2022-0661 or the next vulnerability affects your stack