CVE-2026-35048
Unauthenticated PHP code injection in Piwigo installer allowing remote code execution.
Is CVE-2026-35048 being exploited?
Not confirmed. CVE-2026-35048 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 0.58% probability of exploitation in the next 30 days.
How severe is CVE-2026-35048?
CVE-2026-35048 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-2026-35048?
Yes. A fix has been recorded for CVE-2026-35048. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-35048 affect?
CVE-2026-35048 affects Piwigo <=16.3.0, Piwigo installer component, Sites running PHP 8+. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-35048?
Disable installer, restrict access, apply vendor patch when available, audit/restore hosts.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote PHP code execution: attacker injects PHP via installer POST fields, written to local/config/database.inc.php and executed on every request, enabling full server compromise.
Immediate action required
- affected<= 16.3.0
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.