Gwolle Guestbook vulnerabilities
Plugin slug gwolle-gb · 8 known vulnerabilities · latest disclosed 2026-10-15 · WordPress.org page
Every listed vulnerability has a fix. Version 5.1.2 or later is not affected by any of them. If your site runs an older version, update it.
2 of 8 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Gwolle Guestbook
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 6.1 | <= 5.1.1 | 5.1.2 | CVE-2026-103481 | 2026-10-15 | Advisory |
| Medium 6.1 | <= 4.9.2 | 4.9.3 | CVE-2025-5807 | 2025-07-09 | Advisory |
| Medium 6.1 | <= 4.7.1 | 4.7.2 | CVE-2025-24710 | 2025-01-31 | Advisory |
| Medium 6.1 | <= 4.1.2 | 4.2 | CVE-2021-24980 | 2021-11-23 | Advisory |
| Medium 6.1 | <= 2.5.3 | 2.5.4 | CVE-2018-17884 | 2018-07-28 | Advisory |
| Medium 6.1 | <= 2.1.0 | 2.1.1 | none | 2017-03-01 | Advisory |
| High 8.8 | <= 2.1.0 | 2.1.1 | none | 2017-03-01 | Advisory |
| Critical 9 | < 1.5.4 | 1.5.4 | CVE-2015-8351 | 2015-11-04 | Advisory |
Check if a site is affected
Enter a site address to see which version of Gwolle Guestbook and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the Gwolle Guestbook plugin safe to use?
All 8 known issues are fixed in current versions (5.1.2 or later). Keeping it updated is what matters.
How do I check which version of Gwolle Guestbook my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.