CVE-2023-4819: The Shared Files WordPress plugin before 1.7.6 does not return the right Content-Type header for the specified

Q: How do I fix CVE-2023-4819?

shared files: upgrade to 1.7.6. Exact commands for each OS are on this page.

Q: Is CVE-2023-4819 being exploited?

CVE-2023-4819 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-4819 affect?

CVE-2023-4819 affects shared files. Severity is medium (CVSS 6.1). The Shared Files WordPress plugin before 1.7.6 does not return the right Content-Type header for the specified uploaded file. Therefore, an attacker can upload an allowed file extension injected with malicious scripts.

Q: How urgent is CVE-2023-4819?

Priority 37/100. Public exploit reference

Routine

MEDIUM 6.1UPGRADE

CVE-2023-4819 is a medium-severity flaw (CVSS 6.1) affecting shared files. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Shared Files WordPress plugin before 1.7.6 does not return the right Content-Type header for the specified uploaded file. Therefore, an attacker can upload an allowed file extension injected with malicious scripts.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Published	2023-10-16
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: tammersoft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-10-16 20:15 UTCPublished CVE record published
2026-06-17 06:38 UTCUpdated Record last modified

tammersoft shared files UPGRADE

Affected: < 1.7.6

Fixed in: 1.7.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy shared-files || rpm -q shared-files || shared-files --version

2. UPGRADE to 1.7.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade shared-files

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade shared-files

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-4819?

shared files: upgrade to 1.7.6. Exact commands for each OS are on this page.

Is CVE-2023-4819 being exploited?

CVE-2023-4819 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-4819 affect?

CVE-2023-4819 affects shared files. Severity is medium (CVSS 6.1). The Shared Files WordPress plugin before 1.7.6 does not return the right Content-Type header for the specified uploaded file. Therefore, an attacker can upload an allowed file extension injected with malicious scripts.

How urgent is CVE-2023-4819?

Priority 37/100. Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2024-43230 MEDIUM 5.3 UPGRADE Insertion of Sensitive Information Into Sent Data vulnerability in Anssi Laitila Shared Files shared-files.Thi

References

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