CVE-2023-6142: Dev Blog v1.0 - Stored XSS

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-11-21 · updated 2026-06-17
Weakness: CWE-79

Description

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.

Affected products

Dev Blog: 1.0

References

https://fluidattacks.com/advisories/bunny/
https://github.com/Armanidrisi/devblog/
https://fluidattacks.com/advisories/bunny/
https://github.com/Armanidrisi/devblog/

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