CVE-2026-15991
Authenticated users can delete/read files via File Manager plugin leading to possible RCE.
Is CVE-2026-15991 being exploited?
Not confirmed. CVE-2026-15991 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.59% probability of exploitation in the next 30 days.
How severe is CVE-2026-15991?
CVE-2026-15991 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-15991?
Not known from our data. No patch reference has been recorded for CVE-2026-15991, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-15991 affect?
CVE-2026-15991 affects WordPress File Manager plugin 6.0-6.9, WordPress sites running the plugin, PHP web servers hosting affected sites. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-15991?
Update to a patched plugin or remove/disable the plugin; restrict accounts and verify file integrity.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated (subscriber+) attackers can read and delete arbitrary server files via crafted requests, enabling remote code execution if critical files (e.g., wp-config.php) are removed.
Immediate action required
- affected>= 6.0 and <= 6.9
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.