CVE-2023-5340

Fivestarplugins Five Star Restaurant Menu insecure deserialization

9.8 CRITICALEPSS 1.24%

Published20 Nov 2023

Description

The Five Star Restaurant Menu and Food Ordering WordPress plugin before 2.4.11 unserializes user input via an AJAX action available to unauthenticated users, allowing them to perform PHP Object Injection when a suitable gadget is present on the blog.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Fivestarplugins Five Star Restaurant Menu< 2.4.11

Remediation

Fixed in

Fivestarplugins Five Star Restaurant Menu≥ 2.4.11

Frequently asked

Is CVE-2023-5340 being actively exploited?

CVE-2023-5340 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.24%.

How severe is CVE-2023-5340?

CVE-2023-5340 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.24% probability of exploitation.

Which products are affected by CVE-2023-5340?

Affected products include Fivestarplugins Five Star Restaurant Menu.

How do I fix CVE-2023-5340?

Upgrade affected software to a fixed version, for example Fivestarplugins Five Star Restaurant Menu 2.4.11 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-5340 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.