WordPress plugin vulnerabilities
Smush - Image Optimization, Compression, Lazy Load, WebP & CDN vulnerabilities
Known security issues in the Smush - Image Optimization, Compression, Lazy Load, WebP & CDN WordPress plugin, by affected version, with severity, CVE and the version that fixes each one.
- Plugin slug
- wp-smushit
- Latest version
- 4.3.4
- Active installs
- 1,000,000+
- Known vulnerabilities
- 12
- Data updated
- 2026-10-18 11:10 UTC
Check your version
This information comes from public vulnerability databases and may be incomplete or out of date. A plugin with no known vulnerabilities is not proof that it is secure; keep plugins updated and remove the ones you do not use.
Fixed in version 4.3.4 (1)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| [en] The Smush WordPress plugin before 4.3.4 does not restrict changes to a network-wide access setting to network administrators, allowing an administrator of a single site on a multisite network to change it for the entire network. CVE-2026-110039 · Source | Not rated | - | < 4.3.4 | 2026-10-16 |
Fixed in version 4.3.2 (1)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| Smush – Image Optimization, Compression, Lazy Load, WebP & CDN < 4.3.2 - Authenticated (Administrator+) Remote Code Execution CVE-2026-19223 · Source | Not rated | - | < 4.3.2 | 2026-08-27 |
Fixed in version 4.3.0 (1)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| Smush – Image Optimization, Compression, Lazy Load, WebP & CDN <= 4.2.0 - Unauthenticated Denial of Service CVE-2026-81285 · Source | High | 7.5 | < 4.3.0 | 2026-08-27 |
Fixed in version 3.17.1 (1)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| WordPress Smush Image Compression and Optimization Plugin <= 3.17.0 is vulnerable to Directory Traversal CVE-2025-22288 · Source | Medium | 4.1 | < 3.17.1 | 2025-03-29 |
Fixed in version 3.16.5 (1)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| Smush – Lazy Load Images, Optimize & Compress Images <= 3.16.4 - Missing Authorization to Resmush List Deletion CVE-2023-3352 · Source | Medium | 4.3 | < 3.16.5 | 2024-06-20 |
Fixed in version 3.9.9 (2)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| WordPress Smush plugin <= 3.9.8 - Reflected Cross-Site Scripting (XSS) vulnerability CVE-2022-1009 · Source | Medium | 6.1 | < 3.9.9 | 2022-05-03 |
| Smush Image Compression and Optimization <= 2.9.1 - Authenticated Phar Deserialization No CVE assigned · Source | Not rated | - | < 3.9.9 | - |
Fixed in version 3.0.1 (1)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| Smush – Lazy Load Images, Optimize & Compress Images <= 3.0.0 - Authenticated PHAR Deserialization No CVE assigned · Source | Not rated | - | < 3.0.1 | 2018-12-10 |
Fixed in version 3.0.0 (2)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| WordPress Smush Image Compression and Optimization plugin <= 2.9.1 - Authenticated XSS & Phar Deserialization vulnerabilities No CVE assigned · Source | Not rated | - | < 3.0.0 | 2018-12-10 |
| Smush – Lazy Load Images, Optimize & Compress Images <= 2.9.1 - Cross-Site Scripting No CVE assigned · Source | Not rated | - | < 3.0.0 | 2018-12-10 |
Fixed in version 2.7.6 (2)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| Smush – Lazy Load Images, Optimize & Compress Images <= 2.7.5 - Directory Traversal CVE-2017-15079 · Source | High | 7.5 | < 2.7.6 | 2017-09-21 |
| WordPress Smush Image Compression and Optimization plugin <=2.7.5 - File Traversal vulnerability No CVE assigned · Source | Not rated | - | < 2.7.6 | 2017-10-09 |
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Sources and attribution
- Vulnerability data from WPVulnerability (WordPress, plugins, themes and server software). WPVulnerability data license.
- CVE records are copyright The MITRE Corporation. CVE Terms of Use.
- Known-exploited status from the CISA Known Exploited Vulnerabilities catalog. Public domain (U.S. Government work).
- Plugin names, latest versions and install counts from the WordPress.org plugin directory. WordPress is a trademark of the WordPress Foundation; Webforta is not affiliated with or endorsed by WordPress.org, WPVulnerability or the sources above.