WordPress SiteGuard WP plugin plugin <= 1.7.9 - Captcha Bypass vulnerability

published 2026-03-05 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-9645

cvss: 5.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits: 0; none known

Guessable CAPTCHA vulnerability in jp-secure SiteGuard WP Plugin siteguard allows Functionality Bypass.This issue affects SiteGuard WP Plugin: from n/a through <= 1.7.9.

Patch / fix

fixed in 1

jp-secure SiteGuard WP Plugin 1.7.10

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 8 mo ago (2026-03-09)

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.4	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
CISA ADP	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

jp-secure SiteGuard WP Plugin

Classification

Weakness

CWE-804 Guessable CAPTCHA

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/Wordpress/Plugin/siteguard/vulnerability/wordpress-siteguard-wp-plugin-plugin-1-7-9-captcha-bypass-v
vdb-entry

Sources

CVE List CVE-2026-27411
NVD CVE-2026-27411

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary