CVE-2023-0958 Inisev Plugins (Various Versions) - Missing Authorization on handle_installation function

Medium 4.3 Published 28 Jul 2023 Updated 8 Apr 2026

Authenticated attackers with minimal permissions can install specific Inisev plugins due to missing authorization checks, potentially leading to privilege escalation or code execution.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-0958?

CVE-2023-0958 is a medium-severity missing authorization vulnerability in cl272 BackupBliss – Backup & Migration with Free Cloud Storage, published on 28 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Several plugins for WordPress by Inisev are vulnerable to unauthorized installation of plugins due to a missing capability check on the handle_installation function that is called via the inisev_installation AJAX aciton in various versions. This makes it possible for authenticated attackers with minimal permissions, such as subscribers, to install select plugins from Inisev on vulnerable sites. CVE-2023-38514 appears to be a duplicate of this vulnerability.

Weakness: CWE-862

Which versions are affected by CVE-2023-0958?

It affects 11 products.

Products include Backupbliss Backup Migration, Backupbliss Clone, Copy-Delete-Posts Duplicate Post, Inisev Enhanced Text Widget, Inisev Redirection, Inisev Rss Redirect \& Feedburner Alternative and 5 more.

How do I fix CVE-2023-0958?

No fix has been published for CVE-2023-0958 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-2023-0958 being exploited?

There is no known exploitation of CVE-2023-0958 in the wild and no public exploit code.

Sources

Also known as GHSA-hpq9-m2jp-4fgr.