What’s Vulnerable › Vulnerabilities

CVE-2023-47621: Remote code execution via file uploads in guest-entries

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-13 · updated 2026-06-17
• Weakness: CWE-434

Description

Guest Entries is a php library which allows users to create, update & delete entries from the front-end of a site. In affected versions the file uploads feature did not prevent the upload of PHP files. This may lead to code execution on the server by authenticated users. This vulnerability is fixed in v3.1.2. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

• duncanmcclean guest-entries: before 3.1.3 — fixed in 3.1.3

How to fix

Upgrade to a fixed version: duncanmcclean guest-entries 3.1.3. Check the vendor advisory for mitigations.

References

• https://github.com/duncanmcclean/guest-entries/commit/a8e17b4413bfbbc337a887761a6c858ef1ddb4da
• https://github.com/duncanmcclean/guest-entries/security/advisories/GHSA-rw82-mhmx-grmj
• https://github.com/duncanmcclean/guest-entries/commit/a8e17b4413bfbbc337a887761a6c858ef1ddb4da
• https://github.com/duncanmcclean/guest-entries/security/advisories/GHSA-rw82-mhmx-grmj

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