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CVE-2023-47621

24
FAUCET Score

CVE-2023-47621 is a critical vulnerability affecting the duncanmcclean guest_entries PHP library, allowing authenticated users to upload malicious PHP files due to insufficient file type validation. This flaw carries a high CVSS score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating it can lead to remote code execution, compromising the confidentiality, integrity, and availability of the server. While there are no known public exploits, Metasploit modules, or active exploitation, users are strongly advised to upgrade to version 3.1.2 immediately as there are no workarounds. Despite its severity, there is currently no significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.1.3CPE matchmatch criteria
cpe:2.3:a:duncanmcclean:guest_entries:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.02%
Probability of exploitation in next 30 days
EPSS Percentile
60.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0102 is in the 56th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

composerpatch availablevia ghsa
Product: duncanmcclean/guest-entriesFixed in: 3.1.2
composerpatch availablevia ghsa
Product: doublethreedigital/guest-entriesFixed in: 3.1.2
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-rw82-mhmx-grmjhigh

Guest Entries Remote code execution via file uploads

Nov 14, 2023

References

github.com / duncanmcclean/guest-entries/commit/a8e17b4413bfbbc337a887761a6c858ef1ddb4da
Patch
github.com / duncanmcclean/guest-entries/security/advisories/GHSA-rw82-mhmx-grmj
Vendor Advisory