CVE-2023-5340 json
Five Star Restaurant Menu and Food Ordering < 2.4.11 - Unauthenticated PHP Object Injection
published 2023-11-20 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-57657
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Unknown Five Star Restaurant Menu and Food Ordering 2.4.11
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 23 mo ago
Exploit prediction
1.24% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/91a5847a-62e7-4b98-a554-5eecb6a06e5b referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Unknown Five Star Restaurant Menu and Food Ordering
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
- Technology feeds
References
-
wpscan.com
/vulnerability/91a5847a-62e7-4b98-a554-5eecb6a06e5b
exploit, vdb-entry, technical-description, third-party-advisory
Sources
- CVE List CVE-2023-5340
- NVD CVE-2023-5340
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.