CVE-2026-15413
Backdoor in Link Factory WordPress plugin exposes operator-controlled REST API
Is CVE-2026-15413 being exploited?
Not confirmed. CVE-2026-15413 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 0.29% probability of exploitation in the next 30 days.
How severe is CVE-2026-15413?
CVE-2026-15413 is rated Critical with a CVSS score of 10.0. 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-2026-15413?
Not known from our data. No patch reference has been recorded for CVE-2026-15413, 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-2026-15413 affect?
CVE-2026-15413 affects Link Factory WordPress plugin, WordPress sites with the plugin installed, /wp-json/link-factory/v1/ endpoint. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-15413?
Uninstall plugin, restore from clean backup, rotate credentials, scan for IOCs
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Operator-controlled REST API enables remote site compromise and persistent backdoor access: site takeover, malware installation, and data exfiltration.
Immediate action required
- affected<= *
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.