CVE-2023-6887

Name: CVE-2023-6887
Creator: NVD / NIST
Published: 2023-12-17T01:15:27.553+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.91%

Last modified Jun 17, 2026

CVE-2023-6887 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability classified as critical has been found in saysky ForestBlog up to 20220630. This affects an unknown part of the file /admin/upload/img of the component Image Upload Handler. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

Description

A vulnerability classified as critical has been found in saysky ForestBlog up to 20220630. This affects an unknown part of the file /admin/upload/img of the component Image Upload Handler. The manipulation of the argument filename leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-248247.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.91%

55.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Forestblog Project	Forestblog	<= 2022-06-30

References

https://github.com/daydust/vuln/blob/main/ForestBlog/Arbitrary_File_Upload_Vulnerability.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.248247Permissions Required
https://vuldb.com/?id.248247Third Party Advisory
https://github.com/daydust/vuln/blob/main/ForestBlog/Arbitrary_File_Upload_Vulnerability.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.248247Permissions Required
https://vuldb.com/?id.248247Third Party Advisory

Timeline

Published: Dec 17, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6887?

How severe is CVE-2023-6887?

CVE-2023-6887 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6887?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6887?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST