CVE-2020-11516: Stored XSS in the Contact Form 7 Datepicker plugin through 2.6.0 for WordPress allows authenticated attackers

Q: How do I fix CVE-2020-11516?

contact-form-7-datepicker: upgrade to newer than 2.6.0. Exact commands for each OS are on this page.

Q: Is CVE-2020-11516 being exploited?

CVE-2020-11516 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-2020-11516 affect?

CVE-2020-11516 affects contact-form-7-datepicker. Severity is medium (CVSS 5.4). Stored XSS in the Contact Form 7 Datepicker plugin through 2.6.0 for WordPress allows authenticated attackers with minimal permissions to save arbitrary JavaScript to the plugin's settings via the unprotected wp_ajax_cf7dp_save_settings AJA

Q: How urgent is CVE-2020-11516?

Priority 37/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2020-11516 is a medium-severity flaw (CVSS 5.4) affecting contact-form-7-datepicker. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stored XSS in the Contact Form 7 Datepicker plugin through 2.6.0 for WordPress allows authenticated attackers with minimal permissions to save arbitrary JavaScript to the plugin's settings via the unprotected wp_ajax_cf7dp_save_settings AJAX action and the ui_theme parameter. If an administrator creates or modifies a contact form, the JavaScript will be executed in their browser, which can then be used to create new administrative users or perfor

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-04-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: contact-form-7-datepicker project

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

Am I affected?

Timeline

2020-04-07 17:15 UTCPublished CVE record published
2026-06-17 02:50 UTCUpdated Record last modified

contact-form-7-datepicker project contact-form-7-datepicker UPGRADE

Affected: <= 2.6.0

Fixed in: newer than 2.6.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.6.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade contact-form-7-datepicker

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-2020-11516?

contact-form-7-datepicker: upgrade to newer than 2.6.0. Exact commands for each OS are on this page.

Is CVE-2020-11516 being exploited?

CVE-2020-11516 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-2020-11516 affect?

CVE-2020-11516 affects contact-form-7-datepicker. Severity is medium (CVSS 5.4). Stored XSS in the Contact Form 7 Datepicker plugin through 2.6.0 for WordPress allows authenticated attackers with minimal permissions to save arbitrary JavaScript to the plugin's settings via the unprotected wp_ajax_cf7dp_save_settings AJA

How urgent is CVE-2020-11516?

Priority 37/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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