CVE-2024-6517: The Contact Form 7 Math Captcha WordPress plugin through 2.0.1 does not sanitise and escape a parameter before

Q: How do I fix CVE-2024-6517?

contact form 7 math captcha: upgrade to newer than 2.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2024-6517 being exploited?

CVE-2024-6517 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-2024-6517 affect?

CVE-2024-6517 affects contact form 7 math captcha. Severity is medium (CVSS 6.1). The Contact Form 7 Math Captcha WordPress plugin through 2.0.1 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users.

Q: How urgent is CVE-2024-6517?

Priority 40/100. Public exploit reference

This month

MEDIUM 6.1UPGRADE

CVE-2024-6517 is a medium-severity flaw (CVSS 6.1) affecting contact form 7 math captcha. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Contact Form 7 Math Captcha WordPress plugin through 2.0.1 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-09-26
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: dotsquares

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

Am I affected?

Timeline

2024-09-26 06:15 UTCPublished CVE record published
2026-06-17 08:18 UTCUpdated Record last modified

dotsquares contact form 7 math captcha UPGRADE

Affected: <= 2.0.1

Fixed in: newer than 2.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.0.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade contact-form-7-math-captcha

Note

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Contact Form 7 Math Captcha <= 2.0.1 - Cross-site Scripting

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-2024-6517?

contact form 7 math captcha: upgrade to newer than 2.0.1. Exact commands for each OS are on this page.

Is CVE-2024-6517 being exploited?

CVE-2024-6517 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-2024-6517 affect?

CVE-2024-6517 affects contact form 7 math captcha. Severity is medium (CVSS 6.1). The Contact Form 7 Math Captcha WordPress plugin through 2.0.1 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users.

How urgent is CVE-2024-6517?

Priority 40/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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