What is CVE-2023-37658?

CVE-2023-37658 is a medium-severity vulnerability in Fastposter Fast-Poster, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-07-11.

How severe is CVE-2023-37658?

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

XSS in Fastposter Fast-Poster

CVE-2023-37658

fast-poster v2.15.0 is vulnerable to Cross Site Scripting (XSS). File upload check binary of img, but without strictly check file suffix at /server/fast.py -> ApiUploadHandler.post causes stored XSS

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (31.7th percentile) — read the EPSS interpretation.

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.

Affected products

Fastposter Fast-poster — versions 2.15.0
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2023-37658?: CVE-2023-37658 is a medium-severity vulnerability in Fastposter Fast-Poster, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-07-11.
How severe is CVE-2023-37658?: Medium severity. CVSS v3 base score is 5.4 out of 10.