What is CVE-2021-47927?

CVE-2021-47927 is a medium-severity vulnerability in Wpsymposiumpro Wp Symposium Pro, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-05-10.

How severe is CVE-2021-47927?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Wpsymposiumpro Wp Symposium Pro

CVE-2021-47927

WordPress Plugin WP Symposium Pro 2021.10 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by exploiting insufficient sanitization of the forum name parameter. Attackers c…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (10.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Wpsymposiumpro Wp Symposium Pro — versions 2021.10

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

ExploitDB-50514 (exploit)
Official Product Homepage (product)
Product Reference (product)
VulnCheck Advisory: WordPress Plugin WP Symposium Pro 2021.10 Stored XSS via wps_admin_forum_add_name (third-party-advisory)

Frequently asked questions

What is CVE-2021-47927?: CVE-2021-47927 is a medium-severity vulnerability in Wpsymposiumpro Wp Symposium Pro, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-05-10.
How severe is CVE-2021-47927?: Medium severity. CVSS v3 base score is 6.4 out of 10.