CVE-2026-13228

Description

The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Privilege Escalation to Administrator in versions up to, and including, 5.6.3 This is due to an Insecure Direct Object Reference (IDOR) in the create_or_update() function of OsOrdersController, which allows an authenticated Agent to supply an arbitrary order[customer_id] and overwrite any LatePoint customer's email field (including one linked to a WordPress Administrator's account) through the public-scope customer set_data() call, combined with a missing role verification in OsAuthHelper::authorize_customer() which logs in the linked WordPress user without checking its role. This makes it possible for authenticated attackers, with custom (Agent)-level access and above, to elevate their privileges to Administrator.

CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0031

Probability of exploitation

0.23%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-269 CWE-269

References

Other References

https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.2/lib/controllers/orders_controller.php#L112 https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.2/lib/controllers/orders_controller.php#L127 https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.2/lib/controllers/orders_controller.php#L137 https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.2/lib/helpers/auth_helper.php#L256 https://plugins.trac.wordpress.org/changeset/3590914/latepoint/trunk/lib/controllers/orders_controller.php https://plugins.trac.wordpress.org/changeset?old_path=%2Flatepoint/tags/5.6.3&new_path=%2Flatepoint/tags/5.6.4 https://www.wordfence.com/threat-intel/vulnerabilities/id/8f9db3b8-dd37-4d8b-b041-50b453858a39?source=cve

Frequently Asked Questions

What is CVE-2026-13228? +

The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Privilege Escalation to Administrator in versions up to, and including, 5.6.3 This is due to an Insecure Direct Object Reference (IDOR) in the create_or_update() function of OsOrdersController, which allows an authenticated Agent to supply an arbitrary order[customer_id] and overwrite any LatePoint customer's email field (including one linked to a WordPress Administrator's account) through the public-scope customer set_data() call, combined with a missing role verification in OsAuthHelper::authorize_customer() which logs in the linked WordPress user without checking its role. This makes it possible for authenticated attackers, with custom (Agent)-level access and above, to elevate their privileges to Administrator. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-13228? +

CVE-2026-13228 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0031, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-13228? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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