CVE-2024-6243: The HTML Forms WordPress plugin before 1.3.33 does not sanitize and escape the form message inputs, allowing

Q: How do I fix CVE-2024-6243?

html forms: upgrade to 1.3.33. Exact commands for each OS are on this page.

Q: Is CVE-2024-6243 being exploited?

CVE-2024-6243 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-2024-6243 affect?

CVE-2024-6243 affects html forms. Severity is medium (CVSS 4.8). The HTML Forms WordPress plugin before 1.3.33 does not sanitize and escape the form message inputs, allowing high-privilege users, such as administrators, to perform Stored Cross-Site Scripting (XSS) attacks even when the unfiltered_html c

Q: How urgent is CVE-2024-6243?

Priority 29/100. Public exploit reference

Routine

MEDIUM 4.8UPGRADE

CVE-2024-6243 is a medium-severity flaw (CVSS 4.8) affecting html forms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The HTML Forms WordPress plugin before 1.3.33 does not sanitize and escape the form message inputs, allowing high-privilege users, such as administrators, to perform Stored Cross-Site Scripting (XSS) attacks even when the unfiltered_html capability is disabled.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-07-22
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: linksoftwarellc

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

Am I affected?

Timeline

2024-07-22 06:15 UTCPublished CVE record published
2026-06-17 08:17 UTCUpdated Record last modified

linksoftwarellc html forms UPGRADE

Affected: < 1.3.33

Fixed in: 1.3.33

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy html-forms || rpm -q html-forms || html-forms --version

2. UPGRADE to 1.3.33 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade html-forms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade html-forms

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-2024-6243?

html forms: upgrade to 1.3.33. Exact commands for each OS are on this page.

Is CVE-2024-6243 being exploited?

CVE-2024-6243 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-2024-6243 affect?

CVE-2024-6243 affects html forms. Severity is medium (CVSS 4.8). The HTML Forms WordPress plugin before 1.3.33 does not sanitize and escape the form message inputs, allowing high-privilege users, such as administrators, to perform Stored Cross-Site Scripting (XSS) attacks even when the unfiltered_html c

How urgent is CVE-2024-6243?

Priority 29/100. Public exploit reference

Software pages

WordPress vulnerabilities

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CVE-2024-6412 MEDIUM 6.5 UPGRADE The HTML Forms WordPress plugin before 1.3.34 does not have CSRF checks in some places, which could allow att

References

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