CVE-2026-6443
Backdoor in Accordion and Accordion Slider WP plugin v1.4.6 enables persistent access.
Is CVE-2026-6443 being exploited?
Not confirmed. CVE-2026-6443 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 0.50% probability of exploitation in the next 30 days.
How severe is CVE-2026-6443?
CVE-2026-6443 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-2026-6443?
Not known from our data. No patch reference has been recorded for CVE-2026-6443, 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-2026-6443 affect?
CVE-2026-6443 affects WordPress plugin: Accordion and Accordion Slider (v1.4.6). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-6443?
Patch/replace plugin; upgrade to safe version or remove.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Persistent backdoor allows attacker admin-like access and spam injection on compromised WordPress sites.
Immediate action required
- affected1.4.6
- affected2.1.8
- affected2.7.7
- affected2.6.9
- affected1.5.7
- affected2.0.8
- affected2.9.1
- affected1.5.6
- affected1.7.4
- affected1.7.6
- affected2.8.6
- affected3.5.6
- affected2.4.5
- affected1.8.6
- affected2.8.7
- affected2.6.6
- affected1.7.6
- affected3.8.7
- affected5.0.6
- affected3.9.5
- affected3.7.1
- affected3.7.8.1
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.