CVE-2025-13851
Privilege escalation via unauthenticated REST API in Buyent Classified plugin
Is CVE-2025-13851 being exploited?
Not confirmed. CVE-2025-13851 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 0.31% probability of exploitation in the next 30 days.
How severe is CVE-2025-13851?
CVE-2025-13851 is rated Critical with a CVSS score of 9.8. 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-2025-13851?
Not known from our data. No patch reference has been recorded for CVE-2025-13851, 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-2025-13851 affect?
CVE-2025-13851 affects Buyent Classified plugin for WordPress (≤1.0.7), Buyent theme bundle for WordPress. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-13851?
Upgrade to patched version or remove the plugin
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated users can register as admin via REST API and _buyent_classified_user_type, gaining full site control.
Immediate action required
- affected<= 1.0.7
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.