WebP Express vulnerabilities
Plugin slug webp-express · 4 known vulnerabilities · latest disclosed 2026-10-20 · WordPress.org page
Every listed vulnerability has a fix. Version 0.25.16 or later is not affected by any of them. If your site runs an older version, update it.
2 of 4 rated high or critical (CVSS 7 or more).
Known vulnerabilities in WebP Express
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| High 7.2 | <= 0.25.15 | 0.25.16 | CVE-2026-97328 | 2026-10-20 | Advisory |
| Medium 5.3 | <= 0.25.9 | 0.25.11 | CVE-2025-11379 | 2025-12-03 | Advisory |
| Medium 5.4 | < 0.14.11 | 0.14.11 | CVE-2019-15837 | 2019-06-26 | Advisory |
| High 7.5 | < 0.14.11 | 0.14.11 | CVE-2019-15330 | 2018-12-11 | Advisory |
Check if a site is affected
Enter a site address to see which version of WebP Express and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the WebP Express plugin safe to use?
All 4 known issues are fixed in current versions (0.25.16 or later). Keeping it updated is what matters.
How do I check which version of WebP Express 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.