What is CVE-2020-19914?

CVE-2020-19914 is a medium-severity vulnerability in Xiuno Xiunobbs, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-09-07.

How severe is CVE-2020-19914?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2020-19914 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Xiuno Xiunobbs

CVE-2020-19914

Cross Site Scripting (XSS) in xiunobbs 4.0.4 allows remote attackers to execute arbitrary web script or HTML via the attachment upload function.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-09-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (52.3th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001

Affected products

Xiuno Xiunobbs — versions 4.0.4

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-19914

References

kevinoclam.github.io/blog/2019/07/31/xiunobbs-upload/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-19914?: CVE-2020-19914 is a medium-severity vulnerability in Xiuno Xiunobbs, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-09-07.
How severe is CVE-2020-19914?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2020-19914 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.