What is CVE-2017-15863?

CVE-2017-15863 is a medium-severity vulnerability in Wp No External Links Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-10-24.

How severe is CVE-2017-15863?

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

Is CVE-2017-15863 known to be exploited?

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

XSS in Wp No External Links Project

CVE-2017-15863

Cross Site Scripting (XSS) exists in the wp-noexternallinks plugin before 3.5.19 for WordPress via the date1 or date2 parameter to wp-admin/options-general.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-10-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.010 (61.0th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Wp No External Links Project

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

lists.openwall.net/full-disclosure/2017/06/02/3 (Exploit, Mailing List, VDB Entry, Third Party Advisory)
wordpress.org/plugins/wp-noexternallinks/ (Third Party Advisory, Release Notes)

Frequently asked questions

What is CVE-2017-15863?: CVE-2017-15863 is a medium-severity vulnerability in Wp No External Links Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-10-24.
How severe is CVE-2017-15863?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2017-15863 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.