CVE-2025-66802
RCE in Sourcecodester COVID-19 Contact Tracing System 1.0 via user image reverse shell.
Is CVE-2025-66802 being exploited?
Not confirmed. CVE-2025-66802 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 0.90% probability of exploitation in the next 30 days.
How severe is CVE-2025-66802?
CVE-2025-66802 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-2025-66802?
Yes. A fix has been recorded for CVE-2025-66802. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-66802 affect?
CVE-2025-66802 affects Sourcecodester COVID-19 Contact Tracing System 1.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-66802?
Apply vendor patch when released; harden image upload validation.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
RCE via crafted user image/upload leading to PHP reverse shell.
Patch when possible