CVE-2026-104389
Blind SQL injection in Sirv WordPress plugin allows database extraction.
Is CVE-2026-104389 being exploited?
Not confirmed. CVE-2026-104389 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.
How severe is CVE-2026-104389?
CVE-2026-104389 is rated High with a CVSS score of 8.5. 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-2026-104389?
Not known from our data. No patch reference has been recorded for CVE-2026-104389, 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-2026-104389 affect?
CVE-2026-104389 affects Sirv WordPress plugin (<= 8.2.5), WordPress sites using Sirv plugin. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-104389?
Disable/remove Sirv plugin or restrict access; apply WAF rules; install vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Blind SQLi enabling attackers to extract database data, enumerate accounts, and potentially enable account compromise or site tampering via crafted requests.
Immediate action required
- affected<= 8.2.5
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.