What’s Vulnerable › Vulnerabilities

CVE-2025-8778: NitroPack <= 1.18.4 - Missing Authorization to Authenticated (Subscriber+) Limited Settings Update via nitropack_set_compression_ajax Function

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-10 · updated 2026-06-17
• Weakness: CWE-862

Description

The NitroPack plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the nitropack_set_compression_ajax() function in all versions up to, and including, 1.18.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update the nitropack-enableCompression option and effectively change plugin compression settings.

Affected products

• NitroPack – Performance, Page Speed & Cache Plugin for Core Web Vitals, CDN & Image Optimization: through 1.18.4

References

• https://plugins.trac.wordpress.org/browser/nitropack/trunk/functions.php#L2907
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3354452%40nitropack&new=3354452%40nitropack&sfp_email=&sfph_mail=
• https://wordpress.org/plugins/nitropack/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/750f35ce-0f1c-4a12-a7a0-2c217de277fd?source=cve

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