CVE-2026-65573
Unauthenticated PHP Object Injection in Abelle <=1.22 enabling remote code execution.
Is CVE-2026-65573 being exploited?
Not confirmed. CVE-2026-65573 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 0.30% probability of exploitation in the next 30 days.
How severe is CVE-2026-65573?
CVE-2026-65573 is rated Critical. 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-2026-65573?
Not known from our data. No patch reference has been recorded for CVE-2026-65573, 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-2026-65573 affect?
CVE-2026-65573 affects Abelle <=1.22, Self-hosted Abelle PHP websites, Servers running vulnerable Abelle instances. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-65573?
Isolate/take down Abelle instances, block external access, and apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated PHP Object Injection allows remote code execution, arbitrary file write and full site takeover via crafted payloads.
Immediate action required
- affected<= 1.22
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.