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WebP Express vulnerabilities
WebP Express has 3 known vulnerabilities in this database. The most recent published record is dated 4 Dec 2025.
- Known vulnerabilities
- 3
- Active installs
- 300,000+
- Latest version
- 0.25.15
- Last updated
- 19 Jun 2026
- Most recent
- 4 Dec 2025
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Sensitive data exposure CVE-2025-11379 | Medium 5.3 | Up to 0.25.9 | Fixed in a later version (latest 0.25.15) | 4 Dec 2025 |
| Cross-site scripting (XSS) CVE-2019-15837 | Medium 5.4 | Before 0.14.8 | Fixed in 0.14.8 | 30 Aug 2019 |
| Arbitrary file read CVE-2019-15330 | High 7.5 | Before 0.14.11 | Fixed in 0.14.11 | 22 Aug 2019 |
Read the published descriptions
- CVE-2025-11379, 4 Dec 2025
- The WebP Express plugin for WordPress is vulnerable to information exposure via config files in all versions up to, and including, 0.25.9. This is due to the plugin not properly randomizing the name of the config file to prevent direct access on NGINX. This makes it possible for unauthenticated attackers to extract configuration data. CVE record
- CVE-2019-15837, 30 Aug 2019
- The webp-express plugin before 0.14.8 for WordPress has stored XSS. CVE record
- CVE-2019-15330, 22 Aug 2019
- The webp-express plugin before 0.14.11 for WordPress has insufficient protection against arbitrary file reading. CVE record
What to do if you run WebP Express
If you run WebP Express, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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