CVE-2021-36830 | BDVDB-2026-185686 Detail

mibuthuComment Guestbook (WordPress plugin)

Description#

Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Comment Guestbook plugin <= 0.8.0 at WordPress.

Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact none. Attack vector: network.

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

No public exploit known

4.8 Medium

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 44.0.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Cross-Site Scripting

No specific action is recorded in the source data. Check the references for vendor guidance.

Not available

4.8 Medium

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).