CVE-2026-87848 MPCX Lightbox 1.2.2 - 1.2.5 - Unauthenticated Non-Public Post Content Disclosure
Unauthenticated attackers can retrieve content from private, draft, and password-protected posts via an unprotected AJAX action in the MPCX Lightbox plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-87848?
CVE-2026-87848 is a low-severity missing authorization vulnerability in Unknown MPCX Lightbox, published on 23 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-87848?
How do I fix CVE-2026-87848?
No fix has been published for CVE-2026-87848 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-87848 being exploited?
There is no known exploitation of CVE-2026-87848 in the wild and no public exploit code.
Sources
Also known as GHSA-c9c7-pp8h-rm54.