What is CVE-2023-6142?

CVE-2023-6142 is a medium-severity vulnerability in Armanidrisi Dev Blog, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-11-21.

How severe is CVE-2023-6142?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Armanidrisi Dev Blog

CVE-2023-6142

Dev blog v1.0 allows to exploit an XSS through an unrestricted file upload, together with a bad entropy of filenames. With this an attacker can upload a malicious HTML file, then guess the filename of the uploaded file and send it to a potential victim.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-11-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (34.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Armanidrisi Dev Blog — versions 1.0
Dev Blog — versions 1.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

fluidattacks.com/advisories/bunny/ (Exploit, Third Party Advisory)
github.com/Armanidrisi/devblog/ (Product)

Frequently asked questions

What is CVE-2023-6142?: CVE-2023-6142 is a medium-severity vulnerability in Armanidrisi Dev Blog, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-11-21.
How severe is CVE-2023-6142?: Medium severity. CVSS v3 base score is 5.4 out of 10.