CVE-2021-24565: The Contact Form 7 Captcha WordPress plugin before 0.0.9 does not have any CSRF check in place when saving its

Q: How do I fix CVE-2021-24565?

contact form 7 captcha: upgrade to 0.0.9. Exact commands for each OS are on this page.

Q: Is CVE-2021-24565 being exploited?

CVE-2021-24565 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-24565 affect?

CVE-2021-24565 affects contact form 7 captcha. Severity is high (CVSS 8.8). The Contact Form 7 Captcha WordPress plugin before 0.0.9 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 escap

Q: How urgent is CVE-2021-24565?

Priority 49/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2021-24565 is a high-severity flaw (CVSS 8.8) affecting contact form 7 captcha. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Contact Form 7 Captcha WordPress plugin before 0.0.9 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.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-79, CWE-352
Published	2021-08-23
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: contact form 7 captcha project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-08-23 12:15 UTCPublished CVE record published
2026-06-17 03:40 UTCUpdated Record last modified

contact form 7 captcha project contact form 7 captcha UPGRADE

Affected: < 0.0.9

Fixed in: 0.0.9

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy contact-form-7-captcha || rpm -q contact-form-7-captcha || contact-form-7-captcha --version

2. UPGRADE to 0.0.9 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade contact-form-7-captcha

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade contact-form-7-captcha

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-24565?

contact form 7 captcha: upgrade to 0.0.9. Exact commands for each OS are on this page.

Is CVE-2021-24565 being exploited?

CVE-2021-24565 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-24565 affect?

CVE-2021-24565 affects contact form 7 captcha. Severity is high (CVSS 8.8). The Contact Form 7 Captcha WordPress plugin before 0.0.9 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 escap

How urgent is CVE-2021-24565?

Priority 49/100. High severity; Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2022-2187 MEDIUM 6.1 UPGRADE The Contact Form 7 Captcha WordPress plugin before 0.1.2 does not escape the $_SERVER['REQUEST_URI'] parameter

References

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