CVE-2026-24989
Deserialization in SUMO Affiliates Pro allows object injection.
Is CVE-2026-24989 being exploited?
Not confirmed. CVE-2026-24989 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 0.38% probability of exploitation in the next 30 days.
How severe is CVE-2026-24989?
CVE-2026-24989 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-2026-24989?
Yes. A fix has been recorded for CVE-2026-24989. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-24989 affect?
CVE-2026-24989 affects SUMO Affiliates Pro (WordPress plugin) < 11.4.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-24989?
Update to 11.4.0 or newer
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution risk via crafted serialized input on vulnerable WordPress sites.
Immediate action required
- affected<= 11.4.0
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.