CVE-2021-24980

6.1 mediumEPSS 0.8%

Medium (6.1) in gwolle guestbook project gwolle guestbook. EPSS 0.8% chance of exploitation in the next 30 days.

The Gwolle Guestbook WordPress plugin before 4.2.0 does not sanitise and escape the gwolle_gb_user_email parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue in an admin page

Severity

CVSS 3.1

6.1 medium

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-12-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gwolle_guestbook_project:gwolle_guestbook

References

https://wpscan.com/vulnerability/e50bcb39-9a01-433f-81b3-fd4018672b85
https://wpscan.com/vulnerability/e50bcb39-9a01-433f-81b3-fd4018672b85

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