CVE-2026-87848 Details
Description
The MPCX Lightbox WordPress plugin 1.2.2 through 1.2.5 does not have any authorisation or authentication on one of its AJAX actions available to unauthenticated users, nor does it check the status of the requested post, allowing unauthenticated visitors to retrieve the title, content or excerpt of arbitrary posts, including private, draft, pending, trashed and password-protected ones.
A vulnerability exists in the MPCX Lightbox WordPress plugin versions 1.2.2 to 1.2.5, where an AJAX action is available to unauthenticated users without any authorization or authentication. The plugin fails to verify the status of the requested post, allowing unauthorized visitors to access the title, content, or excerpt of any post, including those that are private, draft, pending, trashed, or password-protected. Exploitation requires the plugin's caption source feature to be enabled by an administrator, as it is turned off by default.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 23, 2026CISA-ADP
Assessed Sep 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/183ec34f-446f-481f-9019-26e005ad2cfb/ | [email protected] | AdvisoryExploitPartial ContentRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| MPCX Lightbox | >= 1.2.2, <= 1.2.5 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 23, 2026 | New CVE Received | [email protected] |
| Sep 23, 2026 | CVE Modified | CISA-ADP |