What is CVE-2023-47851?

CVE-2023-47851 is a medium-severity vulnerability in Addonmaster Bootstrap Shortcodes Ultimate, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2023-11-30.

How severe is CVE-2023-47851?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2023-47851 known to be exploited?

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

XSS in Addonmaster Bootstrap Shortcodes Ultimate

CVE-2023-47851

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Akhtarujjaman Shuvo Bootstrap Shortcodes Ultimate allows Stored XSS.This issue affects Bootstrap Shortcodes Ultimate: from n/a through 4.3.1.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-11-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (20.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

patchstack.com/database/vulnerability/bs-shortcode-ultimate/wordpress-bootstrap… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2023-47851?: CVE-2023-47851 is a medium-severity vulnerability in Addonmaster Bootstrap Shortcodes Ultimate, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2023-11-30.
How severe is CVE-2023-47851?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-47851 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.