What is CVE-2021-36830?

CVE-2021-36830 is a medium-severity vulnerability in Comment Guestbook Project, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-09-30.

How severe is CVE-2021-36830?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2021-36830 known to be exploited?

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

XSS in Comment Guestbook Project

CVE-2021-36830

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

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (33.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Comment_guestbook_project Comment_guestbook
Mibuthu Comment Guestbook (Wordpress Plugin) — versions <= 0.8.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

audit@patchstack.com (x_refsource_CONFIRM, Third Party Advisory)
audit@patchstack.com (x_refsource_CONFIRM, Product)

Frequently asked questions

What is CVE-2021-36830?: CVE-2021-36830 is a medium-severity vulnerability in Comment Guestbook Project, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-09-30.
How severe is CVE-2021-36830?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2021-36830 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.