WP Compress – Instant Performance & Speed Optimization vulnerabilities
Plugin slug wp-compress-image-optimizer · 19 known vulnerabilities · latest disclosed 2026-10-15 · WordPress.org page
Every listed vulnerability has a fix. Version 7.26.00 or later is not affected by any of them. If your site runs an older version, update it.
5 of 19 rated high or critical (CVSS 7 or more).
Known vulnerabilities in WP Compress – Instant Performance & Speed Optimization
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 4.8 | <= 7.25.00 | 7.26.00 | CVE-2026-104755 | 2026-10-15 | Advisory |
| Medium 5.3 | <= 7.22.01 | 7.22.38 | CVE-2026-120551 | 2026-09-08 | Advisory |
| Medium 5.3 | <= 7.21.28 | 7.22.0 | CVE-2026-84757 | 2026-09-02 | Advisory |
| Critical 9.8 | < 7.20.01 | 7.20.01 | CVE-2026-73343 | 2026-08-18 | Advisory |
| Medium 6.5 | <= 7.10.09 | 7.20.01 | CVE-2026-17608 | 2026-08-15 | Advisory |
| Medium 6.1 | <= 7.10.3 | 7.10.04 | CVE-2026-9066 | 2026-07-02 | Advisory |
| Medium 5.3 | <= 6.60.28 | 6.60.29 | CVE-2026-25370 | 2026-02-17 | Advisory |
| Medium 5.3 | <= 6.50.54 | 6.50.55 | CVE-2025-57899 | 2025-09-22 | Advisory |
| High 7.3 | <= 6.30.30 | 6.30.31 | CVE-2025-47479 | 2025-07-03 | Advisory |
| Medium 4.3 | <= 6.30.30 | 6.30.31 | CVE-2025-47546 | 2025-05-07 | Advisory |
| High 8.8 | <= 6.30.15 | 6.30.16 | CVE-2025-2110 | 2025-03-25 | Advisory |
| Medium 5.8 | <= 6.30.15 | 6.30.16 | CVE-2025-2109 | 2025-03-24 | Advisory |
| Medium 6.1 | <= 6.30.03 | 6.30.04 | CVE-2024-12047 | 2025-01-03 | Advisory |
| Medium 6.1 | <= 6.20.13 | 6.21.01 | CVE-2024-47384 | 2024-09-30 | Advisory |
| Medium 6.5 | <= 6.20.01 | 6.20.02 | CVE-2024-4445 | 2024-05-13 | Advisory |
| Medium 4.3 | <= 6.20.01 | 6.20.02 | CVE-2023-6812 | 2024-05-13 | Advisory |
| Medium 4.3 | <= 6.10.35 | 6.11.01 | CVE-2024-32106 | 2024-04-11 | Advisory |
| High 7.5 | <= 6.11.10 | 6.11.11 | CVE-2024-1934 | 2024-03-21 | Advisory |
| Critical 9.1 | <= 6.10.33 | 6.10.34 | CVE-2023-6699 | 2024-01-03 | Advisory |
Check if a site is affected
Enter a site address to see which version of WP Compress – Instant Performance & Speed Optimization and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the WP Compress – Instant Performance & Speed Optimization plugin safe to use?
All 19 known issues are fixed in current versions (7.26.00 or later). Keeping it updated is what matters.
How do I check which version of WP Compress – Instant Performance & Speed Optimization 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.