CVE-2023-0143: Send PDF for Contact Form 7 < 0.9.9.2 - Contributor+ Stored XSS via Shortcode

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-02-06 · updated 2026-06-17

Description

The Send PDF for Contact Form 7 WordPress plugin before 0.9.9.2 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Affected products

Send PDF for Contact Form 7: before 0.9.9.2 — fixed in 0.9.9.2

How to fix

Upgrade to a fixed version: Send PDF for Contact Form 7 0.9.9.2. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/c4cd3d98-9678-49cb-9d1a-551ef8a810b9
https://wpscan.com/vulnerability/c4cd3d98-9678-49cb-9d1a-551ef8a810b9

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