What is CVE-2023-51691?

CVE-2023-51691 is a medium-severity vulnerability in Gvectors Wpdiscuz, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2024-02-01.

How severe is CVE-2023-51691?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Is CVE-2023-51691 known to be exploited?

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

XSS in Gvectors Wpdiscuz

CVE-2023-51691

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in gVectors Team Comments – wpDiscuz allows Stored XSS.This issue affects Comments – wpDiscuz: from n/a through 7.6.12.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2024-02-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (25.4th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.4% 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

References

patchstack.com/database/vulnerability/wpdiscuz/wordpress-wpdiscuz-plugin-7-6-12… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2023-51691?: CVE-2023-51691 is a medium-severity vulnerability in Gvectors Wpdiscuz, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2024-02-01.
How severe is CVE-2023-51691?: Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2023-51691 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.