CVE-2023-4836

WordPress File Sharing Plugin < 2.0.5 - Subscriber+ Sensitive Data and Files Exposure via IDOR

4.3 Medium

The WordPress File Sharing Plugin WordPress plugin before 2.0.5 does not check authorization before displaying files and folders, allowing users to gain access to those filed by manipulating IDs which can easily be brute forced

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.60%Up 0.6 points since Nov 1, 2023

What each source reports

NVD Score used 4.3

Record: CVE-2023-4836
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-639
Updated: 2026-11-02

CVE List 4.3

WordPress File Sharing Plugin < 2.0.5 - Subscriber+ Sensitive Data and Files Exposure via IDOR

Record: CVE-2023-4836
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

EUVDEUVD-2023-54677 4.3

Record: EUVD-2023-54677
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-r75f-cj9v-2727 4.3

The WordPress File Sharing Plugin WordPress plugin before 2.0.5 does not check authorization...

Record: GHSA-r75f-cj9v-2727
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-639
Updated: 2026-11-02

OSVCLSA-2023-1697016696 No score

Fix CVE(s): CVE-2023-4863, CVE-2023-4836

SECURITY UPDATE: Heap buffer overflow
- debian/patches/CVE-2023-4863-pre.patch: prepare sources to be patched
- debian/patches/CVE-2023-4863-1.patch: first, BuildHuffmanTable() is called to check if the data is valid. If it is and the table is not big enough, more memory is allocated. This will make sure that valid (but unoptimized because of unbalanced codes) streams are still decodable.
- debian/patches/CVE-2023-4863-2.patch: fix memory error
- debian/patches/CVE-2023-4863-3.patch: remove unused code
- debian/patches/CVE-2023-4863-4.patch: fix pointer offset int overflow
- CVE-2023-4836

Record: CLSA-2023-1697016696
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`libwebp-dev` TuxCare:Ubuntu:18.04 From an advisory covering 2 CVEs	before 0.6.1-2ubuntu0.18.04.2.tuxcare.els1	0.6.1-2ubuntu0.18.04.2.tuxcare.els1
`libwebp6` TuxCare:Ubuntu:18.04 From an advisory covering 2 CVEs	before 0.6.1-2ubuntu0.18.04.2.tuxcare.els1	0.6.1-2ubuntu0.18.04.2.tuxcare.els1
`libwebpdemux2` TuxCare:Ubuntu:18.04 From an advisory covering 2 CVEs	before 0.6.1-2ubuntu0.18.04.2.tuxcare.els1	0.6.1-2ubuntu0.18.04.2.tuxcare.els1
`libwebpmux3` TuxCare:Ubuntu:18.04 From an advisory covering 2 CVEs	before 0.6.1-2ubuntu0.18.04.2.tuxcare.els1	0.6.1-2ubuntu0.18.04.2.tuxcare.els1
`webp` TuxCare:Ubuntu:18.04 From an advisory covering 2 CVEs	before 0.6.1-2ubuntu0.18.04.2.tuxcare.els1	0.6.1-2ubuntu0.18.04.2.tuxcare.els1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-4836 is a medium vulnerability (CVSS 4.3) in Unknown Wordpress File Sharing Plugin, published October 11, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 48th percentile. No source names a fixed version.