What is CVE-2016-10984?

CVE-2016-10984 is a medium-severity vulnerability in Smackcoders Echo Sign, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-09-17.

How severe is CVE-2016-10984?

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

Is CVE-2016-10984 known to be exploited?

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

XSS in Smackcoders Echo Sign

CVE-2016-10984

The echosign plugin before 1.2 for WordPress has XSS via the inc.php page parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-09-17 · 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: 0.014 (70.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Smackcoders Echo Sign

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpvulndb.com/vulnerabilities/8465 (Third Party Advisory)
wordpress.org/plugins/echosign/ (Release Notes)
0x62626262.wordpress.com/2016/04/21/echosign-plugin-for-wordpress-xss-vulnerabi… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2016-10984?: CVE-2016-10984 is a medium-severity vulnerability in Smackcoders Echo Sign, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-09-17.
How severe is CVE-2016-10984?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2016-10984 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.